Humpback whale, sperm whale, pilot whale, Beluga, minke, blue whale and fin whale have similar adaptations.
why yes
The narwhal is the only one I can think of.
Yes it is
Nilgai, Narwhal,
WALRUS! or... NARWHAL!
Narwhal
Maybe Narwhal.
The Narwhal
Narwhal
Probably a narwhal or a rhino
NARWHAL
The Narwhal.