Where the Wild Things Aren’t

4 bulan ago kesimpulan 0
Bringing you the latest Science news from the world.

What is happening in our world? Who is discovering what? What is going on now? These are questions that will be answered. Enjoy.

Where the Wild Things Aren’t

Daubentonia madagascariensis

Coded message or not, there is a perfectly reasonable explanation for why the aye-aye has a middle finger that is so much longer, thinner and gnarlier than any of the others: It’s a percussive forager.

The aye-aye, a lemur from Madagascar, taps out a little rhythm on a wooden surface to determine where cavities are inside. Then, listening with its large disk-shaped ears and probably using echolocation, it decides exactly where the grubs are for grub time. It uses its incisors to make a small hole in the surface, and then it inserts its especially extended digit into said hole and presto — it pulls its dinner out of the opening, thus giving the invertebrates inside it the actual finger. And this finger is articulated by sitting on a ball-and-socket joint, allowing it to move and swivel a full 360 degrees. So watch out, the aye-aye can get ahold of you wherever you are.

Dexterity aside, hunting and superstition have left it endangered. This odd lemur is considered evil: Dead aye-ayes are often hung upside down outside a village to ward off evil spirits. Several ongoing captive breeding programs have not proved successful with second-generation creatures, and the work continues. Solutions need to be found — otherwise, we may have to say bye-bye to the aye-aye.


Source link

Iklan