Ruuhkatukka
Ruuhkatukka t1_j115c0w wrote
Reply to comment by onioning in TIL Lake Baikal is located in southeast Siberia and is the oldest and deepest lake in the world, at 25 million years old and 1,700 meters deep. It contains 20% of the world's unfrozen freshwater and is home to a rich and unusual freshwater fauna that is of significant value to evolutionary science. by wisely_lined56
Why would a river be unfriendly for seals? Salt water seals do just fine in freshwater too don't they?
Ruuhkatukka t1_j116vot wrote
Reply to comment by onioning in TIL Lake Baikal is located in southeast Siberia and is the oldest and deepest lake in the world, at 25 million years old and 1,700 meters deep. It contains 20% of the world's unfrozen freshwater and is home to a rich and unusual freshwater fauna that is of significant value to evolutionary science. by wisely_lined56
Interesting. So there were river based sub species at some point? I don't know much about seals but I was always fascinated by the sub species that lives in lake Saimaa here in Finland.