Why Are There No Horse-Sized Rabbits? We Finally Know The Evolutionary Answer
24 APRIL 2021 If you've ever wondered why rabbits and hares never evolved to be the size of horses, scientists have now got the answer. It might sound like a flippant question, but it gets to an important part of evolutionary science: What is it that causes some animal taxonomies to have such a wide variation in size, while with others it's very small? For example, lagomorphs – which include rabbits and hares – don't vary much in size, whereas the closely related rodents can go all the way from the tiny pygmy mouse to the chunky capybaras with hundreds of times as much mass.
Source: sciencealert.com