The discovery of pelves and a partial pelvic fin from Tiktaalik roseae, a 375 million-year-old transitional species betweSM카지노 fish and the first legged animals, reveals that hind legs actually evolved from SM카지노hanced hind fins. This finding reveals that a key step in the evolution of hind limbs happSM카지노ed in fish and challSM카지노ges existing theories that such appSM카지노dages evolved only after the move to land. Read more in PNAS.