What to we really know about the giant prehistoric shark reincarnated by Hollywood?
Your body needs oxygen to function — and that was true even before you were born. As you grew inside your mother’s womb, even before you had working lungs, your cells were crying out for oxygen. And your mother kindly answered that call. Oxygen and nutrients from her blood made their way down your umbilical cord, through your belly button, and fueled your body.
Now consider a chick — before it has hatched. It’s cut off from its mother by a hard shell and a couple membranes. There’s no way for the hen to get her still-developing offspring the oxygen it desperately needs; the pre-hatchling is on its own.
So why don’t bird embryos suffocate inside their eggs?
In Skunk Bear’s newest episode, we use the magic of animation to take you inside an egg and explore the delicate system that keeps these little things alive.
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How and when did early humans first arrive in the Americas? The answer may lie along the Northern America’s Pacific Coast. Experts believe early humans travelled from Siberia to Alaska across a land bridge. But what happened next has been far more difficult to pinpoint. The conventional story suggests the earliest North American settlers then…
How ancestors of living birds survived asteroid strike – http://www.bbc.co.uk/news/science-environment-44226534
A long-held theory on how horse domestication and language spread across Asia has been disrupted by a look at our genetic past.
Full article here
The unprecedented Ichthyornis fossil from Kansas offers fresh perspective on bird evolution.
Full article here.
Modern birds are dinosaurs without toothy jaws, and with bigger brains. Newly published research fills in some of the missing links in their evolution.(Image credit: Michael Hanson and Bhart-Anjan S. Bhullar/Nature Publishing Group)
Paleontology, like much else in the cultural landscape, has a strong western influence and bias. Students are more likely than not to be given textbooks and external readings from Europe and North America no matter where they are in the world. I often think about my own experiences as a paleontology student in France now…
Bison had survived for 2 million years until humans arrived – http://www.bbc.com/earth/story/20170406-bison-had-survived-for-2-million-years-until-humans-arrived
Non-avian dinosaurs took between three and six months to hatch from their eggs, according to a study that examined the teeth of fossilized dinosaur embryos. Scientists have long assumed dinosaur incubation was similar to the rapid incubation of birds, which hatch within 11 to 85 days. However, the study found that dinosaurs aligned more with…