The closest living relative to the blue whale among the land dwelling animals is the Hippo. There is an article with fairly simple language and good graphical support here http://nationalzoo.si.edu/Animals/AfricanSavanna/News/hipposandwhales.cfm No whale, dolphin, fish,(etc.) has a relative on land. You may want to visit answersingenesis.org
The closest land relative known to the manatee is the elephant.
No if they were they be on land
The dugong is the manatee's closest relative, but the elephant is the manatee's closest relative on land, which is odd because manatees are called "sea cows."
their eyes adapt to both land and water blue whales are very unique animals
John Frobysler is a relative of Martin Frobisher. He was granted land in Whales.
No, blue whales can't survive on land because they have breath in water to stay alive.
Land animals closest to whales and dolphins are hippos, and other hoofed animals like cows and deer!
Keep noisy boats and water engines away from them and if you see a blue whale on land call an animal rescue emergency number immediately. But we humans are helping to keep danger and boats away from the Blue Whales environment. But you can also donate to a charity to help Blue whales:-).
No. Blue whales are the largest living animal, both sea and land, but they aren't fish, they're mammals. They breathe with lungs, give live birth, suckle their young etc.