Do Whales Sleep? (Adaptations of Marine Mammals)
Whales are marine mammals and don’t have gills. They’ll need to come to the surface at some point to breath. So, do whales sleep?
Whales are marine mammals and don’t have gills. They’ll need to come to the surface at some point to breath. So, do whales sleep?
Orcas are also known as killer whales. This name may seem to indicate that they’re dangerous animals. But are killer whales really that dangerous?