wildpreciouslife: worldofwhales: Pregnant hum…

wildpreciouslife:

worldofwhales:

Pregnant humpback whale taking a nap 💙 Clark Little

This is super cool. 

Does anyone know how to tell that the whale is pregnant?

Well in this case you can tell because she’s big, even for whale standards. Her belly is very large and has a rounder shape than your ordinary humpback, which would look leaner, like the one below.

image

But there are pregnancy tests for whales as well, basically a bunch of curious marine biologists jump onto a boat, they use a dart to get a skin and blubber sample from the whale and they measure the concentration of progesterone in the blubber to find out if there’s a big baby on the way 😀