This is a passenger announcement. You can now book your train on Uber and get 10% back in credits to spend on Uber eats.

So you can order your own fries instead of eating everyone else's.

Trains, now on Uber. T's and C's apply.

Check the Uber app. I'm Scott Hirschberger with Scientific American as an American

Association for the Advancement of Science Mass Media Science and

Engineering Fellow and here's a short piece from the November 2020 issue of the magazine in a

section called Advances Dispatches from the Frontiers of Science, Technology,

and Medicine. The article is titled Quick Hits and it's a rundown of some stories from around the globe.

From Panama, Vampire bats monitored at the Smithsonian Tropical Research Institute

have fewer interactions with family and friends when ill, biologists say,

but they do not seem to stay apart intentionally. Instead, sick bats are simply too lethargic to call out to or groom one another. From Canada, the last fully intact

ice shelf in Canada collapsed into the Arctic Ocean this summer. Located in the territory of

Nunavut, the Milne ice Shelf lost 80 square kilometers of ice, 40% of its area, in just two days.

From Chile, living 6,700 meters above sea level, a yellow-rumbed leaf-eared mouse found at the summit of the

dormant volcano Yuayako is the highest dwelling mammal ever documented.

It remains unclear how the animal survives the oxygen scarcity and

freezing temperatures at this elevation. From Russia, an analysis of

ancient woolly rhino DNA from Siberia revealed that the population size was stable for thousands of years before the mammal's extinction 14,000 years ago, suggesting that a warming climate, not hunting by humans, most likely triggered its demise.

From Ethiopia, paleoanthropologists

unearthed a 1.4 million-year-old hand axe

made from a hippos leg bone.

Together with recently discovered stone tools,

...