For one thing, dolphins, chimpanzees, and humans are the three animals that can recognize their reflections in a mirror. Others think it is another object. This suggests that dolphins, chimpanzees, and humans have a more developed frontal lobe, especially in the area of self-awareness.
Hand makes the human being different from other mammals. Without wrist joint hand can not have all sort of movements. So humans have wrists.
The same way other mammals (like humans) do.
Bats can fly.
Its fur
Mammals can give birth,where few animals cant
It lays its young in eggs.
No. Platypi are different from other mammals because they lay eggs instead of giving birth to live young.
No, humans are mammals and evolved from other primitive mammals.
A rat has three vena cavas while most other mammals like humans only have two.
Dolphins, human beings, and chimpanzees are all mammals who have unusually high intelligence, compared to most other mammals. We are smart.
These humans that you speak of belong to the placental group of mammals
That is simple.. Dolphins, Chimpanzees and Humans, are different from most mammals because they have similar bones in there body. Why don't you look their systems in their bodies to compare.