LifeA worm with legs? No, you're not seeing things In life this weird-looking fossil was Hallucigenia, a creature like a worm – although the spines, head and legs might suggest otherwise Regulars
LifeDinosaurs shrank for 50 million years to become birds The meat-eating theropod dinosaurs shrank 12 times in a row, going from over 200 kilograms to less than a kilogram, until they were small enough to fly ¿ìè¶ÌÊÓÆµ