4.3 • 1.4K Ratings
🗓️ 3 June 2021
⏱️ 5 minutes
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0:00.0 | This podcast is brought to you in part by PNAS Science Sessions, a production of the proceedings |
0:06.0 | of the National Academy of Sciences. Science Sessions offers brief yet insightful discussions |
0:10.8 | with some of the world's top researchers. Just in time for the spooky season of Halloween, |
0:15.2 | we invite you to explore the extraordinary hunting abilities of spiders, |
0:18.9 | featuring impressive aerial maneuvers, and webs that function as sensory antennas. |
0:23.5 | Follow Science Sessions on popular podcast platforms like iTunes, Spotify, or your preferred podcast |
0:29.3 | platform. This is Scientific Americans, 60-Second Science. I'm Karen Hopkins. |
0:40.5 | Dogs and their people. |
0:43.8 | Are you a good boy? Yes, you are. |
0:46.8 | We like to think our pooches can follow what we're telling them. |
0:50.2 | Go eat your bolly. Over there. Look at it. Good doggy. |
0:55.0 | Well, to some degree they can, even when they're young. Because a new study shows |
1:00.3 | that puppies are able to track human social cues at just eight weeks of age |
1:05.7 | before they've really spent much time with people. And their ability to do so |
1:10.0 | has strong roots in their genetics. The work appears in the journal Current Biology. |
1:15.5 | We have known for a long time that adult dogs are especially skilled in understanding |
1:20.7 | cooperative communication from humans. Emily Bray is a postdoctoral researcher at the University |
1:26.4 | of Arizona and the canine companions for independence. So, for example, they can spontaneously |
1:32.3 | follow a human pointing gesture. They're even better at it than apes, which are much more closely |
1:37.7 | related to us than canines are, evolutionarily speaking. So this begs the question of why. |
1:44.0 | Is it a skill that dogs pick up simply by spending time with people? Or is it a trait that was |
1:50.1 | selected for when dogs first became domesticated? To find out, Bray and her colleagues spent time |
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