Science
From fins to limbs – EurekAlert
In a new study an international team of researchers examined three-dimensional digital models of the bones, joints, and muscles of the fins and limbs of two extinct…
When tetrapods (four-limbed vertebrates) began to move from water to land roughly 390 million years ago it set in motion the rise of lizards, birds, mammals, and all land animals that exist today, including humans and some aquatic vertebrates such as whales and dolphins.
The earliest tetrapods originated from their fish ancestors in the Devonian period and are more than twice as old as the oldest dinosaur fossils. They resembled a cross between a giant salamander and a crocodile and were about 1-2…
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