Mesozoic Plants

The 3 volume Catalogue of the Mesozoic plants in the Department of Geology, British Museum was published between 1894 and 1900…authored by Albert Charles Seward early in his career and earned him membership in the Royal Society at the youthful age of 35. The specimens are from the Wealden beds; the most important finds came from near Hastings. The beds accumulated in a freshwater estuary or lake and include representatives of many plants. The volumes are available on Internet Archive: Vol 1, Vol 2, Vol 3. Seward devoted years to create the catalog: sifting through the fossils…organizing the material…creating images. It was a worthy endeavor and set the trajectory for the rest of his life.

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As I browsed these books, I made a game of looking for plants I recognized in the fossils…ferns, conifers, ginkgo-like leaves.

Gleanings of the Week Ending January 29, 2022

The items below were ‘the cream’ of the articles and websites I found this past week. Click on the light green text to look at the article.

Photography In the National Parks: My 10 Favorite Shots From 2021 – I only went to one national park in 2021: New River Gorge (in West Virginia). There are so many beautiful National Parks to see…and they’re worth seeing again and again.

Big Gulp: Blue Catfish Eat Wood Duck – We’ve seen fishermen catch blue catfish at the base of Conowingo Dam (we’re there for the bald eagles). They are huge…sorry to learn that they eat ducks.

Top 25 birds of the week: Raptors! – How many of these live in your area of the world?

Air Pollution Makes It Harder for Bees to Sniff Out Flowers – Not just a problem for bees…also moths, hoverflies and butterflies are having a harder time. This results in a 14-31% reduction in pollination among plants exposed to polluted air.

Ocean microplastic pollution may be greater than estimated – Not a good trend…and this form of pollution that is new enough that the full impact is still being discovered.

With Fewer Animals to Move Their Seeds, Plants Are Stuck in Threatened Habitats – Another way the world is becoming less resilient at a time when climate change is pushing all life to use all the resilience available.

Large Permian Basin Methane Leaks Are Causing As Much Climate Pollution as 500,000 Cars – It’s frustrating that the oil industry has not been a better steward of resources they are extracting for energy. The methane leaks are a waste of the effort put into extraction….and bad for the planet too.

Dinosaur food and Hiroshima bomb survivors: maidenhair trees are ‘living fossils’ and your new favorite plant – Learn more about the ginkgo tree! There is one along my walking route in my neighborhood and others I find in local gardens and parks near where I live. They are so different from other trees…worth noticing.

North Sea Fossil Fuel Companies Plan to Invest More in Wind than Oil Drilling – Hurray! Maybe other companies around the world begin to do this too….a strategic move for Shell, Total and BP.

Antimicrobial resistance now a leading cause of death worldwide, study finds – This challenge will increase over time…if we don’t take action to slow the development of resistance and develop new antimicrobial techniques (maybe we need more strategies than simply trying to develop new antibiotics).

Gleanings of the Week Ending April 3, 2021

The items below were ‘the cream’ of the articles and websites I found this past week. Click on the light green text to look at the article.

New wearable device turns the body into a battery -- ScienceDaily – I’m always forgetting to charge my Fitbit until the low battery warning message comes up. It would be great to never need to charge it!

Soot from Asia travels express on a highway to the high Arctic : Research Highlights – Soot in the Arctic traced back to its source.

Working outdoors linked to lower risk of breast cancer among older women -- ScienceDaily - Outdoor workers are able to make more vitamin D which may be protective, say researchers. This is an observation…but might indicate a thread for future research.

World's first dinosaur preserved sitting on nest of eggs with fossilized babies – An fossilized Oviraptorosaur, a bird-like theropod, found on a nest filled with its 24 eggs.

Stealth Chemicals: A Call to Action on a Threat to Human Fertility - Yale E360 and Air pollution: The silent killer called PM 2.5 -- ScienceDaily – Products of human ingenuity that are negatively impacting our health.

94% of older adults prescribed drugs that raise risk of falling: From 1999-2017, more than 7.8 billion fall-risk-increasing drugs were prescribed to older adults in the US, and deaths from falls doubled -- ScienceDaily – In my 50s, my doctor prescribed a blood pressure medication that made me dizzy. When I complained about it (citing the danger of becoming dizzy and falling down stairs being a greater risk than the benefit of lowering my blood pressure to the level she was attempting), she decided I didn’t need the medication since I was taking half the lowest dose tablet. I hope that the medical professionals prescribing the fall-risk-increasing drugs are more careful about how they are using them now for older people particularly…but for younger people too. Sometimes it seems like the trend is to always ‘treat with drugs’ to address a specific problem rather than integrating for the overall health of the individual.

Was This Helmet Worn by an Ancient Greek Soldier During the Persian Wars? | Smart News | Smithsonian Magazine – Found by a dredging vessel off the coast of Haifa, Israel.

50 Birds: Adventures in Backyard Birding – Birding can be done anywhere. Many people have discovered the joy of bird watching from home during this pandemic year.

Joshua Trees: An Uncertain Future For A Mojave Desert Icon – A big fire and climate change….are the Joshua Trees doomed?

Health declining in Gen X and Gen Y, US study shows -- ScienceDaily – The long-term trends are not positive; the US was already seeing decreases in life expectancy and increases in disability/morbidity pre-pandemic. The study pointed to the increase in unhealthy behaviors over the past decades that medical treatment cannot overcome. Based on the response to public health measures attempted in the US for the pandemic, it’s difficult to be optimistic that any kind of intervention could be broadly effective.

Gleanings of the Week Ending August 1, 2020

The items below were ‘the cream’ of the articles and websites I found this past week. Click on the light green text to look at the article.

Identifying sources of deadly air pollution in the United States -- ScienceDaily – Focusing on fine particulates associated with heart attacks, strokes, lung cancer, and other diseases…about half comes from burning fossil fuels; the other half is from animal agriculture, dust from construction and roads, and burning wood for heating/cooking. Ammonia is one pollutant that is not regulated as much as the others and yet it causes a 5th of all deaths caused by fine particulates. It could be reduced with targeted manure management and improving formulations of cleaning supplies, paints, and inks, etc.

Free Technology for Teachers: 500+ Icebreaker Questions – These could also be used as writing prompts…they are good for a bit of self-exploration…useful even if you are not in as many groups right now.

Aztec Palace and House Built by Hernán Cortés Unearthed in Mexico City | Smart News | Smithsonian Magazine – History through layers of stone floors.

Biosignatures may reveal a wealth of new data locked inside old fossils -- ScienceDaily – Not DNA…chemical analysis (using non-destructive Raman spectral analysis) of products of degraded proteins, lipids, and sugars in fossils. Results group into 3 types of biosignatures: biomineralization, tissue, and phylogenic.

Infographic: What Social Isolation Can Mean for the Brain | The Scientist Magazine® - I wondered if the brain structural observations were a cause or effect (or neither). Does the observation that people who are lonely have smaller amygdalae because that are isolated or because they were born that way and it wouldn’t matter if there were a lot of people interacting with them…they would always feel lonely/isolated.

Top 25 birds of the week: July 2020 - Wild Bird Revolution – Always beautiful birds.

Innovative Birds Face a Lower Risk of Extinction | The Scientist Magazine® - Birds that are dropping nuts on roads, stealing burning candles to eat the wick, using bread to lure fish, and pecking open sugar packets…..coming up with new behaviors to cope with new aspects of their environment.

A Silk Road Renaissance - Archaeology Magazine – Many more commodities than silk on the ‘silk’ road: jade, glass, spices, metalwork, ceramic….and missionaries. And the Sogdians were the people that made it work from the 5th to 8th centuries. Panjakent, in modern Tajikistan, has been excavated since the 1940s; many murals have been found depicting myths, fables and everyday life of the Sogdians. In 755 a failed Sogdian coup against the Chinese emperor and thereafter incursion of Arabs from their west caused the culture to fade.

New Research Reveals Surprising Origins of Egypt's Hyksos Dynasty | Smart News | Smithsonian Magazine – Based on chemical analysis of skeletons from the Hyksos capital, the dynasty was likely the result of an immigrant uprising rather than a hostile outside invasion!

Weird and Unbelievable Facts About Earwigs – Entomological trivia…always fun.

Unique Activities for Yesterday:

Blue Jay Behavior.  There was a blue jay on the deck railing making noise….fluttering its wings…making eye contact with 3 or 4 other blue jays around at the time. Those other jays seemed to ignore the ruckus and flew away. Then the bird flew down to the floor of the deck to look for seeds. Maybe it was a fledgling wanting to be fed by the adults…but the adults were forcing the young bird to find its own food? I’m not sure…but I enjoyed witnessing the minute or so of action…whatever it was about. Maybe it was the same jay that tried to get seed from our bird feeder a few days ago (and failed).

Summer Camp Volunteering – week 2

The theme for last week’s Howard Count Conservancy’s summer camps was ‘Fantastic Beasts.’ I spent a morning at Mt. Pleasant and the next morning at Belmont. At Mt. Pleasant there were three groups of campers….45 minutes for each. I used the dinosaur and mammal track rock found at NASA Goddard (saw it back when I was in the HOLLIE program) to initiate the conversation about extinct animals and fossils. There were some fossil shells from Calvert Cliffs and some of the campers had been there to explore themselves. I had on my ammonite shaped earrings too.

Then for some action: Two pans of water, a measuring tape and white board. A person put one foot into each pan (shoes on) and then stepped out and walked normally. The measurement team (usually two campers) measured heal print to heal print to determine the walking stride length. We measured the walking stride of the tallest and shortest in each group (and then everyone else because everyone wanted to know their stride length…or game it and take extra-long steps!). In the oldest group of campers, we measured the running stride (heel first and on toes). It was a great activity to further explore what information can be gleaned from tracks.

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We transitioned into evidence of animals living today with some whelk shells and egg cases found on a beach. Some campers were surprised that the whelks were animals that still live in the ocean along the east coast of the US.

One of the junior counselors had participated in a dinosaur dig in Montana…and shared some pictures for her adventure with the campers.

It was a busy 45 minutes!

At Belmont, there were two groups of campers making Zentangle® tiles. I introduced the session using the NASA Goddard rock, the welk shells and my ammonite earrings….and then showed them patterns for beasts. The first group (younger) made octopus/jelly fish and tracks. The second group experimented with an ammonite type pattern, tracks and shells. The theropod tracks were the most popular. Many made some big therapod tracks and then some small ones (moms with babies). A variation from one camper: a therapod track….then a blank area where the therapod flew….then more tracks. One camper made mammal tracks. Both groups enjoyed adding colors after they made their patterns with the black Sharpie ultrafine pens.

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The Zentangle® Method is an easy-to-learn, relaxing, and fun way to create beautiful images by drawing structured patterns. It was created by Rick Roberts and Maria Thomas. "Zentangle" is a registered trademark of Zentangle, Inc. Learn more at zentangle.com.

Gleanings of the Week Ending May 4, 2019

The items below were ‘the cream’ of the articles and websites I found this past week. Click on the light green text to look at the article.

Exploring the Parks: White Sands National Monument – Another place I want to return to and spend a bit more time. I’ve been once when we were on the way from Dallas to Tucson. I posted about it back in 2013. We stayed long enough to have a picnic, walk along the boardwalk trail, and photograph cliff swallows at the visitor center.

New Analysis of Depression-Era Fossil Hunt Shows Texas Coast Was Once a 'Serengeti' | Smart News | Smithsonian – Research on collections made by the Works Progress Administration and mostly just stored since the 1940s….Other states than Texas probably have research projects on these collections as well.

IYPT 2019 Elements 020: Calcium: Teeth, bones and cheese | Compound Interest – Another article in the International Year of the Periodic Table series. Did you know that the human body contains about 1 kilogram of calcium?

Image of the Day: High Contrast | The Scientist Magazine® - The milkweed bug! The milkweed is just beginning to come up so I haven’t seen any of these bugs yet this year…but they’ll come out soon enough. I’ll try to remember some of this article next time I see the bug with a group of field trip hikers!

12 Famous Flower Paintings, from Monet to Mondrian – A little eye candy. Notice that there are insects with the flowers in the Ambrosius Bosschaert painting.

An invasive, thorny tree is taking over Africa – can it be stopped? – It’s not just the US that has problems with invasive plants and animals brought from elsewhere in the world. The Mesquite tree that is problematic in Africa came from South America.

Top 25 Wild Bird Photographs of the week: April and Waterbirds – Catching up a little on the series…two this week and there are still some left for the next gleanings collection.

‘Exquisitely Preserved’ Skin Impressions Found in Dinosaur Footprints | Smart News | Smithsonian – The prints are from a small theropod. Not only do they show the impression left by skin…they also indicate the dinosaur was in Korea earlier than previously thought (10-20 million years earlier).

Electric Cars Could Be as Affordable as Conventional Vehicles in Just Three Years - Yale E360 – EV technologies are developing rapidly. In 2015, batteries made up 57% of the EV total cost; today it’s down to 33% and by 2025 the projection is 2025. I know that I have enjoyed my plug-in-hybrid and that my next car will probably be an EV.

Clean Tech Jobs Lead Employment Statistics in Many US States | CleanTechnica – The map is worth the look. Solar panel installer or wind turbine service technician is the fastest growing type of job in 11 states!

3 Free eBooks – August 2018

So many great books available all the time…and free. Reading used to be a much more expensive activity!

Brongniart, Adolphe. Histoire des végétaux fossiles, ou, Recherches botaniques et géologiques sur les végétaux renfermés dans les diverses couches du globe. A Paris et a Amsterdam: Chez G. Dufour et Ed. d’Ocagne. 1828. Available from Internet Archive here. This book includes many illustrations of plant fossils – imprints on rocks. It’s written in French – but the illustrations are the reason it’s worth a look. It was probably one of the first paleobotany books ever written. The author produced the book in his late 20s…must have had access to a sizable collection.

Karageorghis, Vassos. Ancient Art from Cyprus - The Cesnola Collection in The Metropolitan Museum of Art. New York: Harry N. Abrams, Inc. 2000. Available from Internet Archive here. This is a more recent book (I am glad that many copyright holders that have out-of-print books are making them available this way). The color illustrations are wonderful. I particularly like utilitarian objects.

Aruz, Joan and Wallenfels, Ronald (editors). Art of the first cities: the third millennium B.C. from the Mediterranean to the Indus. New Haven and London: Yale University Press. 2003. Available from Internet Archive here. Another relatively recent book. Would you have guessed the necklace was from the 3rd millennium BC?

Gleanings of the Week Ending December 2, 2017

The items below were ‘the cream’ of the articles and websites I found this past week. Click on the light green text to look at the article.

Free Technology for Teachers: Resources to Learn About Outer Space – Good resources – for more than teaches!

When They Said They Wanted to Rethink Agriculture, They Meant It – Cool Green Science – Developing ways to feed more people with less water and without expanding the area we already use for agriculture….crop redistribution to maximize food production with rainfall rather than irrigation may be part of the solution.

Image of the Day: The Last Sloth | The Scientist Magazine® - Taking a closer look at the Caribbean Islands where then end of the ice age and the arrival of humans were 1,000s of years apart. There were two waves of extinction induced by human arrival: the first about 5,000 years ago when humans first arrived (ground sloth extinction) and the second around 1492 when Columbus arrived (smaller animals extinction).

Ah-Choo! 11 Fun Facts About Sneezing | Berkeley Wellness – No – your heart does not stop!

Large decrease in age-related macular degeneration in baby boomers compared to previous generations -- ScienceDaily – Positive news…but it was a small study and the participants were mostly non-Hispanic white individuals…and there is no information about why the decrease happened. Hope it holds for my family. My grandmother was blind by the time she died in her 90s…from macular degeneration.

New Science Shows Nature’s Potential to Fight Climate Change – Cool Green Science – Finding natural solutions to fight climate change. Reforestation has the highest potential!

Midwifery care at hospitals is associated with fewer medical interventions -- ScienceDaily – enhancing perinatal car and lowering costs for low-risk pregnancies…what’s not to like!

Top 25 Wild Bird Photographs of the Week #115 and #116 – Birds and more birds!

Making it easier to recycle plastics: Emerging technologies could greatly reduce plastic waste -- ScienceDaily – Only 9% of plastics are recycled in the US…not good.

How did Ammonite fossils form? – The chemistry of ammonite fossil formation

Gleanings of the Week Ending September 23, 2017

The items below were ‘the cream’ of the articles and websites I found this past week. Click on the light green text to look at the article.

Celebrate Cassini’s Historic Voyage in Eight Incredible Images | Smart News | Smithsonian – Cassini has crashed into Saturn’s atmosphere (intentionally) and there have been quite a few retrospective articles about its long mission. I liked this one…so am including in the gleanings for this week.

Eighteenth century nautical charts reveal coral loss -- ScienceDaily – The study compared the coral documented in the Florida Keys in nautical charts from the 1770s to satellite data. More than half the coral reef has disappeared completely. Nearer to land, the loss is closer to 90%.

What We Still Don’t Know about the Health Benefits of Nature – THE DIRT – I noticed this article first because the picture under the heading is of Klyde Warren Park in Dallas (I visited there several years ago and enjoyed it) but thin the article was worth looking at too. It defines some priorities for research to understand the health benefits of nature better although most people already agree that is it beneficial…but how exactly does it happen. Some doctors are already prescribing time in the park!

North American Ash on Brink of Extinction | The Scientist Magazine® - In Maryland many of the Ash Trees are already dead or dying. Very sad.

Top 25 Wild Bird Photographs of the Week #105 – National Geographic Society – There’s an Eastern Bluebird toward the middle of this collection….perched a little differently than I usually see them.

A Monumental Road Trip in Northern Arizona - National Parks Traveler – I’ve been to most of these places…..and enjoyed them all.

BBC - Future - How we’re creating ‘super plants’ to help humanity – The article highlights 4 ideas: cross-breeding super plants, using plants as medicine, bananas on steroids, and fire-fighting plants.

Learn How to Create Zentangle Art, a Meditative Form of Drawing – This article is about doing Zentangles (drawing patterns) rather than buying an adult coloring book. I started doing doodles and graduated to Zentangles and never was tempted by the ‘coloring book’ craze.

Ruins of a Roman City Found Off the Coast of Tunisia | Smart News | Smithsonian – The area of ancient Neapolis is off the coast of Tunisia. It was destroyed by a tsunami in 365 AD.

Why are fossilized hairs so rare? -- ScienceDaily – Evidently, fossilized hair is 5 times rarer than feathers.  Chemistry? Environmental conditions? The research includes statistical analysis of where hair and feathers have been found in the fossil record and make some predictions about where and how to look for them going forward.