Evolutionary biologist Simon Conway Morris is convinced aliens exist and are not that different looking from humans. He also says it is surprising we have not already discovered them considering the growing number of planets similar to our planet Earth. “And given the number of potential planets that we now have good reason to think exist, even if the dice only come up the right way every one in 100 throws, that still leads to a very large number of intelligences scattered around, that are likely to be similar to us,” explains the biologist in his new book called The Runes of Evolution, which is a great treat to anyone who is invested in learning about the living world.

Morris previously claimed that aliens would resemble creatures on Earth with limbs, heads, and bodies. In his new book, he goes even further claiming any planet that has lots of similarities to Earth should be also evolving predators such as sharks and mushrooms, among many other specimens.