Jake Bequette faults officials for not fixing his incorrect name listing on some Arkansas ballots arktimes.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from arktimes.com Daily Mail and Mail on Sunday newspapers.
Loading video.
VIDEO: Virtual skeleton of the early tetrapod Pederpes from micro-CT scanned fossil and musculoskeletal reconstruction of its forelimb. view more
Credit: Copyright 2021, Julia Molnar.
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 meters long, had gills, webbed feet and tail fins, and were still heavily tied to water. Their short arms and legs had up to eight digits on each hand and foot and they were probably ambush predators, lurking in shallow water waiting for prey to come near.