Two. All mammals have two eyes. Some mammals, like four-eyed opossums, have marks near their eyes that (from a distance) could be mistaken for another set of eyes, but they only have one true set of eyes.
no
Yes, all mammals' eyes have an iris.
Twice the size of human eyes, and the second largest of all land mammals.
Tigers have two eyes, like most mammals. Their eyes are adapted for hunting in low light conditions and have excellent night vision.
two. like all mammals :)
Generally, mammals and reptiles are both vertebrates, meaning they have a backbone and endoskeleton. Reptiles and mammals also have their brains located inside a cranium and have two eyes.
The large eyes sockets in early mammals used to hold large eyes. The eyes of early mammals were very large and contained a wider pupil and a larger lens. The eyes were much better at seeing in the dark than many mammals are today.
YES
No. Marsupials are just one of three groups of mammals. The other two are monotremes and placental mammals. The vast majority of modern mammals are placental.
Hippos have four limbs.
Humans !