4.2 • 639 Ratings
🗓️ 22 September 2016
⏱️ 3 minutes
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0:00.0 | Understanding the human body is a team effort. That's where the Yachtel group comes in. |
0:05.8 | Researchers at Yachtolt have been delving into the secrets of probiotics for 90 years. |
0:11.0 | Yacold also partners with nature portfolio to advance gut microbiome science through the global grants for gut health, an investigator-led research program. |
0:19.6 | To learn more about Yachtolt, visit yawcult.co. |
0:22.7 | .j.p. That's y-A-K-U-L-T.C-O.J.P. When it comes to a guide for your gut, count on Yacolt. |
0:33.6 | This is Scientific Americans' 60 Second Science. |
0:38.4 | I'm Jason Goldman. |
0:42.2 | Make a left at the big oak tree about a mile down the road. |
0:46.5 | That kind of direction is common in landscapes filled with visual cues. |
0:50.0 | But the Sahara Desert is a much tougher place to navigate. |
0:56.7 | Even any footprints you leave get erased as winds massage the sand. Nevertheless, ants in the desert go on searches for food, and once they find it, they carry their prize directly back to the |
1:02.3 | nest. In the late 1980s, researchers discovered that the ants can achieve this impressive feat |
1:07.7 | using a process called path integration. To gauge the direction home, |
1:11.8 | they keep track of the sun's motion across the sky, just like sailors used to do, to calculate |
1:16.6 | the distance they count their steps. It's a very hostile environment. They're foraging at the |
1:22.4 | hottest times of the day, and it's a desert, so surface temperatures reach 60 to 70 degrees Celsius. |
1:28.9 | Neurobiologist Matthias Whitlinger from Germany's Olme University on the podcast of the journal |
1:34.1 | Science, which published this work. And they need to be really quick in finding food, |
1:39.4 | and they really need to be very quick in get the food back to the nest. They need to be really fast and they're traveling at speeds of 100 body length per seconds. |
1:49.9 | Whitinker noticed that sometimes desert ants carry each other. |
1:53.2 | And here we had like this unique opportunity to test traveling ants that are not walking. |
2:00.0 | If they're not walking, then they can't count |
... |
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