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Latest Tetrapod Stories

fins to legs
2015-04-24 09:00:34

In Part I, we talked about how tetrapods, a group of animals including whales, dolphins, seals and sea turtles, returned to the sea having once survived on land. Other creatures such as snakes and elephants may also have changed their habitat multiple times.

chinese giant salamander
2015-04-09 09:59:10

The world’s largest living amphibian, the Chinese giant salamander (Andrias davidianus), is capable of feeding not only on prey located directly in from of it, but also on creatures which approach from the side, thanks to a newly-discovered quick-strike technique.

ThinkstockPhotos-465633049
2015-03-25 10:53:10

This ugly fish uses water to form a tongue-like apparatus to help it eat on land.

87523_web
2015-03-01 14:38:20

Environment was just right--a 'Goldilocks effect'-- for well-preserved swim tracks from the Early Triassic age.

lungfish
2015-02-07 10:38:16

Lungfish and salamanders can hear, despite not having an outer ear or tympanic middle ear. These early terrestrial vertebrates were probably also able to hear 300 million years ago, as shown in a new study by Danish researchers.

spotted gar
2014-12-23 10:21:20

While the fossil record has found that wrists and fingers have an aquatic origin, previous attempts to link fingers and fins have proven unsuccessful. Now, though, a team led by University of Chicago researchers has discovered the reason why: scientists were studying the wrong fish.

Polypterus senegalus
2014-09-01 04:00:02

About 400 million years ago a group of fish began exploring land and evolved into tetrapods – today's amphibians, reptiles, birds, and mammals. But just how these ancient fish used their fishy bodies and fins in a terrestrial environment and what evolutionary processes were at play remain scientific mysteries.

New Fish Fossil Reveals How Fins May Have Become Hind Limbs
2014-01-14 06:11:22

The evolution of hind legs actually began as enhanced hind fins, according to the newly discovered, well-preserved pelvis and a partial pelvic fin from Tiktaalik roseae—a 375 million-year old transitional species between fish and the first legged animals.

The Land Invasion Race: The Evolution Of Fins To Limbs
2013-07-07 19:51:23

Why did animals with limbs win the race to invade land over those with fins?

Evolution Of Hips Simpler Than Suspected
2013-05-15 12:04:37

The evolutionary path from the bone structure of the fish to the complex, weight-bearing hips of walking animals was a much simpler process than previously thought, according to a new study.


Word of the Day
begunk
  • To befool; deceive; balk; jilt.
  • An illusion; a trick; a cheat.
The word 'begunk' may come from a nasalised variant of Scots begeck ("to deceive, disappoint"), equivalent to be- +‎ geck.