yego.me
💡 Stop wasting time. Read Youtube instead of watch. Download Chrome Extension

Woodpeckers Defend Their Food Supply | National Geographic


less than 1m read
·Nov 11, 2024

[music playing]

NARRATOR: Day breaks over the lovely forested south rim of the canyon, lighting up a dead pine that would seem to have little purpose. But this pine is the central bank and trust of the acorn woodpecker. And every inch is studded with neatly arranged holes, the woodpecker's safe deposit boxes. Finding the absolutely perfect little vault for every acorn can be quite the puzzle. Each hole has been drilled to fit a certain nut shape.

[bird calls] Keeping the treasure house secure requires a bonding of the birds, a breeding collective of several males and females along with their extended family who make deposits and stand guard.

[bird calls]

[music playing] They can be little gymnasts when threats come from above, simply skittering to the underside of the bank branches. This is just a false alarm though, a raven, the jokester of the canyon. There are far more serious threats from below.

Squirrels know exactly how the woodpecker banks work and are always casing the joint. And who could blame him? Just look at all those acorns. This squirrel believes in sharing the wealth. But he better eat fast and stuff those cheeks.

[bird calls] The woodpecker bank tellers hit the alarm. And the security guards swing into action.

[music playing] The bank is secured again, but it won't be long before the habitual thief tries another stickup.

More Articles

View All
Why Einstein Thought Nuclear Weapons Were Impossible
Now that we have nuclear weapons and nuclear power plants, you might think that it was always inevitable that we would be able to harness the energy inside the nucleus of atoms. But that was far from the case. In fact, serious scientists thought the idea …
Identifying composite functions | Derivative rules | AP Calculus AB | Khan Academy
We’re going to do in this video is review the notion of composite functions and then build some skills recognizing how functions can actually be composed. If you’ve never heard of the term composite functions, or if the first few minutes of this video loo…
Accounting profit vs economic profit | APⓇ Microeconomics | Khan Academy
Let’s continue thinking about how rational agents make decisions. So here, we’re told that Sally runs a business that only sells hamburgers in a building she owns. Every month, they sell 5,000 hamburgers at five dollars per hamburger. She spends two dolla…
Apoorva Mehta at Startup School NY 2014
[Alexis] Instacart CEO, Apoorva Mehta, started out with a company that offered something pretty amazing, right? Shopping from stores across your city all in one bag delivered to your home within a few hours. So, you can have that case of Yingling from Cos…
Timur | 600 - 1450 Regional and interregional interactions | World History | Khan Academy
Where we left off in the last few videos, we saw the Empire of the Mongols fragment into the various Khanates. In the East, you have the Yuan Dynasty established by Kublai Khan, and then in the West, you have the Golden Horde, the Chagatai Khanate, and th…
What If You Detonated a Nuclear Bomb In The Marianas Trench? (Science not Fantasy)
What would happen if we detonated humanity’s most powerful nuclear weapon at the deepest point of the ocean? For sure, tsunamis hundreds of meters high would destroy coastal cities, earthquakes would level countries, new volcanoes would bring us nuclear w…