Do whales have hair?
- A: Killer whales and bottlenose dolphins are mammals and one of the features of a mammal is that they are covered in hair or fur. Well killerwhales and bottlenose dolphins do not have hair covering their body, they may have a couple chin whiskers, but nothing more.
From the Related Link below: "A whale's smooth skin is an adaptation for swimming, and whales lose their hair before they are born. A newborn calf sometimes has a few sparse hairs around the rostrum." So they do qualify as mammals, because they have SOME hair at SOME point in their lives. All whales have hair they are mammals. All mammals have hair
Fish have gills, whales have lungs Fish are generally ectothermic (cold-blooded), whales are endothermic (warm-blooded) Fish have fins with no digits, whales have flippers that clearly have digits within. Fish usually have scales but never hair, whales are mammals and have some residual hair Fish cannot feed their young directly, whales feed their babies via mammary glands. Nearly all fish are oviparous with the females laying eggs and males fertilizing them by spreading their sperm…