Chris Espinosa
Is a polar bear a marine mammal?
Mar 23 at 3:30amIvory for iOS
Show threadmacshome3d ago
@Cdespinosa I think some people consider it one.
Show threadRosyna Keller3d ago
@Cdespinosa is this about Darwin’s polar bears? https://publicdomainreview.org/essay/darwin-s-polar-bear/
Darwin’s Polar Bear

Musings upon the whys and wherefores of polar bears, particularly in relation to their forest-dwelling cousins, played an important but often overlooked role in the development of evolutionary theory. Michael Engelhard explores.

The Public Domain Review
Show threadThe Right Irreverend3d ago
@Cdespinosa Used to be….
Show threadphipunk3d ago
@Cdespinosa In a sense yes! Married to an ecology PhD, this very topic has come up. It’s an example of convergent evolution, where they’re nearly as “marine” as elephant seals or sea lions, even though they’re genetically distant.
Show threadChard Nelson3d ago
@Cdespinosa more so than ever, as their ice disappears.