LifeLargest ever animal may have been Triassic ichthyosaur super-predator New fossil discoveries show predatory marine reptiles from 200 million years ago may have been bigger than today’s blue whales – and that they evolved astonishingly rapidly Features
LifeHow reindeer eyes change colour in winter to help them see in the dark It turns out reindeers' amazing night vision is thanks to a strange 'mirror' in their eyes called the tapetum lucidum that is extra sensitive to UV light Features