Because fish look through water, their eyes are very different from a mammal.
⇑ Translate the sentence above by Google ⇑
Related: mammal
Prev: The teacher said it was physically1 impossible for a whale to swallow a human because, even though it was a very large mammal, its throat was very small.
Next: Despite having round anuses like all other mammals, bare-nosed wombats2 do not produce round pellets, tubular coils or messy piles; they are the only creature on Earth that poops cubes.
