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Tag Archives: biology

Science: What Does The Fox Really Say?

No, it’s not “Tchoff tchoff tchoff, tchoff tchoff tchoff tchoff, tchoff tchoff”!

Yes, we’re a few months late on the Ylvis craze, but in our defence, the above video from SciShow just came out. If the song left you wondering what a Fox actually says, the answer is 3 minutes away.

VIA [ GeeksAreSexy ]

DNA Double-Helix Bookcase Speaks To Your Love Of Biology And Books

dna-bookshelf-1

If you’ve got $1,050 burning a hole in your wallet, here’s a pretty cool bookcase you can buy. Made by Milano Furniture, the DNA bookcase is made entirely of steel, and can hold CDs, books or whatever else you feel like arranging into a double-helix structure. And don’t be in a hurry to get it, since it looks like it takes 12 to 14 weeks to deliver.

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You’ll Never Look At Them The Same: This Is What A Mosquito’s Mouthpiece Looking For A Blood Vessel Under Your Skin Looks Like

Squeamish? Please abstain. It’s not as gory or gross a video, as much as it is a disquieting perspective on just what exactly it is that goes on under the skin when a mosquito catches you distracted, and starts to feast. The stunning footage was grabbed by Valérie Choumet at Paris’s Institut Pasteur, where she anaesthetized a mouse, stuck a microscope against a flap of its skin and convinced a mosquito to bite in the right spot. What you see is the insect’s mouthparts probing around, looking for a blood vessel.

The large central needle in the video is actually two parallel tubes—the hypopharynx, which sends saliva down, and the labrum, which pumps blood back up. When a mosquito finds a host, these mouthparts probe around for a blood vessel. They often take several attempts, and a couple of minutes, to find one. And unexpectedly, around half of the ones that Choumet tested failed to do so. While they could all bite, it seemed that many suck at sucking.

We’ll include only this video in the article, but if you’re interested in just what is going on, you should follow the link at the bottom. It leads to a National Geographic article with tons more detail and a couple more vids.

[ National Geographic ]