Whales lack the bone structure and muscles to support their own weight and ... Although dinosaurs were the largest land animals to ever live, not all dinosaurs were huge. Some were pretty tiny. For ...

Sir David Attenborough's unmistakable voice and expertise on all things nature make him the perfect person to take you ... Discover the biggest mammals in the animal kingdom, from extinct mammoths to ...

But while some dinosaurs were the largest animals ever to roam the planet, others were much more modest. All dinosaurs hatched from eggs and many grew no larger than the size of a turkey ...