Tag: biology

Prehistoric Crocodile: Life reconstruction of the head of Gnatusuchus pebasensis, a 13-million-year-old, short-faced crocodile with rounded teeth that was thought to use its snout to dig for clams and other mollusks. Model by Kevin Montalbán-Rivera. (© Aldo Benites-Palomino) Paleontology 

Prehistoric Crocodiles Ruled Ancient Peru

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Today, the Amazon River basin is well known for its biodiversity, but the area also has a long history of abundant life. Thanks to an international team of researchers, we now know that thirteen million years ago at least seven different species of prehistoric crocodile hunted in the swampy waters of what is now northeastern Peru. Evidence of this hyperdiverse group of crocs was found in Amazon bone beds, and it shows the largest number of prehistoric crocodile species co-existing in one place at any time in Earth’s history. This…

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mass extinction events Environment Oceanography Paleontology 

The Forgotten Mass Extinction

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By Jacqueline Mattos Yes, we are in a mass extinction event Recent research has spotted a new major mass extinction, termed the “end-Guadalupian (259.8 Ma),” according to a scientific paper in the journal Historical Biology. Previously, scientists knew of only five mass extinctions in the history of Earth: the end-Ordovician (443.8 Ma), the Late Devonian (372.2 Ma), the end-Permian (251.9 Ma), the end-Triassic (201.4 Ma), and the end-Cretaceous (66 Ma). Our current biodiversity crisis has been called the sixth mass extinction, but with these new findings it will probably be…

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Biology Health Science Videos Zoology 

Will You Still Eat Raw Fish After Watching This Video?

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Sushi, sashimi, and poke are delicious. Why? It’s because they’re all made of raw fish! But, have you ever noticed that warning about raw or undercooked seafood at the bottom of restaurant menus? Have you ever wondered why it’s there? It’s there because fish carry a ton of parasites. And if the fish aren’t prepared correctly, then those parasites can make it into your body. This fishy intersection with the wild world of parasites can teach us a lot about how these moochers help keep ecosystems healthy, and why we…

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Biology Science Videos 

How Habits Are Formed

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Do you have some bad habits that bother you, but you just can’t seem to break? That’s because habits are literally wired into your brain. Every single thought, action, and feeling changes your brain a little bit. For example, this is what loneliness can do to your brain. When repeated enough times, a habit is formed. Some are good, some are bad, but you’re not likely to forget any of them without serious effort. Learn about which parts of your brain are responsible for forming habits, how long it takes,…

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