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Posts treating: "animals"

Monday, 13 April 2015

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Ocean Acidification & the Permo-Triassic Mass Extinction 

Palaeoblog [2015-04-13 15:04:00]  recommend  recommend this post  (23 visits) info

Ocean acidification and the Permo-Triassic mass extinction. 2015. Clarkson, et al. Science Art by Basil WolvertonChanges to the Earth's oceans, caused by extreme volcanic activity, triggered the greatest extinction of all time 252 million years ago that wiped out more than 90 per cent of marine species and more than two-thirds of the animals living on land.Abstract[edit]: Ocean

Restoring a Brontosaurus 

RMDRC paleo lab [2015-04-08 00:31:00]  recommend  recommend this post  (48 visits) info

Growing up in the 80's and 90's was a strange time for a dinosaur fan. On one hand there was a plethora of old books in the library on dinosaurs telling us all about Brontosaurus. On the other, we were getting it beat into our heads that Brontosaurus didn't exist, and it's really Apatosaurus. It was all confusing for those few of us that were actually actively interested in these animals. Today Emanuel Tschopp published a paper resurrecting the genus Brontosaurus as valid. Where does this come [...]

What’s up? The Friday links (76) [2015-04-03 11:00:05]  recommend  recommend this post  (25 visits) info
Do you know your birthquake? And what do you think about animals behaviour before earthquakes? Did you hear about the NPG initative on an outsourced, but accelerated review process? Today is Good Friday, and here are your links! The Nature Publishing Group (NPG) – hosting Nature, Nature Geosciences and a lot of other renowned scientific journals has been working on new, faster and improved way of publishing manuscripts for some time now. One of the stages that makes publishing

How water tracks influence soil biology: the results 

polar soils blog [2015-03-27 05:03:00]  recommend  recommend this post  (23 visits) info

You might remember the field work we were conducting a couple years ago on water tracks. (You can read more about them in my posts from October 2012.) Water tracks are a type of groundwater where water from melting ice trickles down through the soil and moves along the permafrost, kind of like slow-moving underground streams.Water tracks are a common feature in the McMurdo Dry Valleys, but we actually don't know much about how they change the soil they're flowing through. The water they bring [...]

March 21st - Jurassic rocks in Oxfordshire 

Geology in the West Country [2015-03-14 19:02:00]  recommend  recommend this post  (32 visits) info

 Jurassic; GB,US
Because of the popularity of this field trip, we have increased the size of the coach, so if you would still like to come, please contact John by email or 'phone 0117 9862529.If you would like a hand-out before the visit, please contact Elizabeth by email.Jurassic rocks of OxfordshireKirtlington Quarry SSSI - go back in time to a Jurassic environment similar to the Florida Everglades today. These conditions attracted many animals, and the quarry is famous for its rich diversity of fossils. [...]

On Dinosaur Time 

Laelaps [2015-03-08 22:00:33]  recommend  recommend this post  (74 visits) info
In my line of work, I throw time around a lot. In almost everything I write, I casually

Our newest little turtle: Jubal 

RMDRC paleo lab [2015-02-27 00:12:00]  recommend  recommend this post  (34 visits) info

Apparently TPI is the new home for the small turtles of the Niobrara chalk. We've already prepared, molded and cast our tiny Chelosphargis advena, Prepared a new Prionochelys matutina, and show prepped a nice Toxochelys latiremis that we discovered this past spring, all with nice skulls.Our Prionochelys matutina specimen from MU5 (Coniacian)You'd think that we would be content with our fossil turtle stash, but no. You can never have enough of these little guys. This week we prepared from start [...]

12 Perks of Presenting HMNS Outreach 

BEYONDbones [2015-02-26 14:00:48]  recommend  recommend this post  (27 visits) info

After bringing live animals, exotic insects, chemistry demos, and more to over 500 area schools and community organizations last year, the Houston Museum of Natural Science’s Outreach Programs are ready to hit the road in 2015! It takes quite a village … Continue reading

The early evolution of birds – more complicated than trying to untangle your headphones.. 

Green Tea and Velociraptors [2015-02-23 13:34:08]  recommend  recommend this post  (63 visits) info

 Cretaceous,Jurassic; CN,
Birds are a phenomenal story of evolutionary success. As modern-day dinosaur descendants, they occupy almost all environments and ecosystems around the globe, and are truly animals that capture our imaginations. However, how did they become so diverse, both in number and form? This is something only the fossil record can divine for us. Birds first appear in the Middle to Late Jurassic of China and latest Jurassic of Europe (hello, Archaeopteryx), around 160-150 million years ago. Their first [...]

Evidence of post mortem activity in fossil Pelecypod shells from the Panther Mountain formation 

Views of the Mahantango [2015-02-17 09:01:00]  recommend  recommend this post  (29 visits) info

 Devonian; US
Once a hard shelled animal dies it's shell often lies around on top of the muddy bottom until it gets buried. While it is exposed it provides a hard surface for many other encrusting animals that otherwise would not be able to establish themselves. Today I have two examples of trace fossils that were left on the interior surfaces of pelecypod shells from the Devonian aged Panther Mountain formation in NY.First up is this shell which may be an Actinodesma erectum or another species. It's hard to [...]

March 21st The Jurassic in Oxfordshire 

Geology in the West Country [2015-02-08 17:36:00]  recommend  recommend this post  (44 visits) info

 Jurassic; GB,US
Jurassic in OxfordshireElizabeth DevonSaturday 21st March Kirtlington Quarry SSSI - go back in time to a Jurassic environment similar to the Florida Everglades today. These conditions attracted many animals, and the quarry is famous for its rich diversity of fossils. Evidence for the presence of nearby land is provided by the presence of fossil wood, freshwater algae and crustaceans, disarticulated dinosaur skeletons and very rare mammal fossils. It is the richest mammal-bearing locality of [...]

Climate Change Poses Challenges to Plants and Animals 

State of the Planet [2015-02-03 23:35:02]  recommend  recommend this post  (33 visits) info
Because of climate change, spring, summer, fall and winter in the temperate zones are all arriving on average 1.7 days earlier than they ever have before. The changing climate with its more extreme weather is affecting many plant and animal species, disturbing their habitat and disrupting ecosystem functioning. How will plants and animals deal with these

Bonus pterosaur (anurognathid) art you've never seen before! (sort of) blog [2015-01-28 18:29:00]  recommend  recommend this post  (62 visits) info

 Jurassic; DE
Anurognathus ammoni makes itself like a tree, but doesn't leave. Prints are available.Last week I unceremoniously dumped several revamped pterosaur images on the blog after they were prepared for a talk on one of my favourite topics - pterosaur functional morphology and biomechanics. Turned out that I wasn't quite done tinkering with old images however, because another piece - above - was set for 11th hour reworking. It shows one of the subject taxa of my talk - an anurognathid pterosaur - [...]

The Mediterranean’s Missing Sawfishes 

Laelaps [2015-01-22 21:38:00]  recommend  recommend this post  (30 visits) info

In 1959, off the southern coast of France, a tuna boat hauled up a largetooth sawfish. The catch

Science Word of the Day: Ornithogenic 

Laelaps [2015-01-20 19:55:42]  recommend  recommend this post  (35 visits) info
When I considered how I might become a fossil, I mostly thought about the environment I’d have to

Geology of the National Parks in Pictures - The Pony Express Trail 

The Geology P.A.G.E. [2015-01-15 20:43:00]  recommend  recommend this post  (26 visits) info

The next up on my tour of the National Parks in pictures:Pony Express National Historic TrailLast year my family and I headed out to find some geodes in the Utah desert. Along the way we traveled along the Pony Express Trail. Although this trail spreads on through many states, here is a small portion of it, near Dugway, UT.  View looking east, as we passed through Dugway Pass.This post marked the location of the Pony Express, which ran from 1860-1861.Recreation of the Simpsons Springs [...]

How Extinction Changed the Coyote 

Laelaps [2015-01-15 03:44:13]  recommend  recommend this post  (34 visits) info

The La Brea asphalt seeps are famous for the predators found entombed there. Dire wolves and the sabercat

The soil orders simplified 

SOILS MATTER, GET THE SCOOP! [2015-01-05 21:20:55]  recommend  recommend this post  (28 visits) info
To identify, understand, and manage soils, soil scientists have developed a soil classification or taxonomy system. Like the classification systems for plants and animals, the soil classification system contains several

Lab Work 

polar soils blog [2014-12-17 19:20:00]  recommend  recommend this post  (24 visits) info

Now that we’ve collected soil samples, we need to extract and identify the organisms living in the soil. We also need to measure the chemistry of the soil to understand the organisms’ habitat. For the past few days, we’ve been working quite a lot in the lab.We first preserve part of the soil to measure the bacteria and fungi back at home in the U.S. We separate some of the soil into a vial and add a solution that preserves the bacteria and fungi. These vials will be sent home and analyzed [...]

Seal Watch 

polar soils blog [2014-12-03 16:22:00]  recommend  recommend this post  (25 visits) info
We STILL can't get to our field sites. Mars Oasis is too cloudy for the plane to  land. Maybe tomorrow!Instead, today I helped the marine biologists. There are many marine biologists at Rothera Station that study the invertebrates living on the bottom of the ocean. To do their research, they have to scuba dive in the bay that borders the research station. The cold water is their first danger, so they wear protective suits. There are a couple other dangers they must avoid, which are leopard [...] | Impressum