rocksfly
rocksfly t1_j0zmdz0 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
A key to answering this question is genetic analyses, which can help narrow down how long that population has been there. Then you have a broader sense of the climatic variability that could play into the migration.
rocksfly t1_j0xyd44 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
The river connections get pretty close to the lake, and likely connected to the southern part of the lake.
Pinnipeds have been found in inland California when they swim upstream in the rivers and canals.
rocksfly t1_izn4gof wrote
Reply to comment by [deleted] in TIL that the theme song from Mission Impossible get is it's iconic beat of "long long short short" from the Morse code of "M" and "I", which is long long short short. by pango3001
Is this the fight song you play when your team is down by 4 touchdowns?
rocksfly t1_j2f9n3h wrote
Reply to comment by dbbost in This antique store portrait of a lady who looks like Mitch McConnell by majordanger
He was probably on his way to story time.