Yes dolphins were four legged animals, they evolved into what they are now. At first they were wolf-like creatures but they adapted to water. It's the same way with whales.
Most whales will not eat manatees, but the killer whale is an exception. Killer whales will eat manatees, dolphins, turtles, squid, and other aquatic animals.
Whales and dolphins are believed to have evolved from artiodactyls. This is supported by genetic and anatomical evidence, showing a close evolutionary relationship between these groups.
dolphins,whales, manatees
Sharks eat manatees and SOME people kill them.
There are many different fields in Biology. A popular Biology field is Marine Biology. You can work with Killer whales, Manatees, and other sea creatures.
manatees, blue whales, and the humpback whales. they are all pretty close
yes they do, they are fish,and sharks,or whales.
Well, sweetheart, sea cows and whales are both aquatic mammals, so they both like to hang out in the water. They also both have flippers instead of legs, making them quite the swimmers. But hey, don't go mistaking a sea cow for a whale at your next marine biology quiz - they're still two different creatures with their own quirks.
Dolphins and whales are mammals, as well as manatees and otters.
the hip bone
Cuvier's Beaked whales and Sperm whales