To study how fish evolved into land walkers, scientists studied the vertebrate of fish that moved like humans.
Fish eating vegetarians have got it wrong. PETA is trying to convince vegetarians to stop eating sushi on Fish Amnesty Day.
Recent research found that the evolution of animals led to the earth's first mass extinction, rather than a meteorite or super volcano.
In spite of being the most populous as well as rapacious species, a momentous event can still erase humans from the planet, say scientists.
