Mammal- a type of whale, noted for having a spike like a unicorn.
The narwhal is the only one I can think of.
Yes it is
Nilgai, Narwhal,
Maybe Narwhal.
WALRUS! or... NARWHAL!
Narwhal
The Narwhal has a horn. Horse Isle Quiz- Narwhal.
The Narwhal
NARWHAL
Probably a narwhal or a rhino
Narwhal
The Narwhal.