asked 64.9k views
3 votes
One adaptation that is unique to marine mammals is they

can slow their heart beat down.

are warm-blooded.

breathe air through their lungs.

nurse their young.

1 Answer

5 votes
Out of the choices given, one adaptation that is unique to marine mammals is they can slow their own heartbeat down. 
answered
User Gerasimos
by
9.1k points
Welcome to Qamnty — a place to ask, share, and grow together. Join our community and get real answers from real people.