VIDÉO. Écoutez le cri de la fourmi. CHANT. Chez les fourmis, le principal moyen de communication est chimique, via les phéromones. Mais les entomologistes savent qu’elles peuvent également produire des sons en utilisant la jonction entre leur abdomen et leur thorax, un peu comme les criquets utilisent leurs pattes pour se « gratter » et émettre leur chant. Dans un article publié dans la revue Current Biology, des scientifiques révèlent que les adultes ne sont pas les seuls à produire des sons, c’est aussi le cas pour les pupes, le stade de développement entre la larve et l’imago (fourmi adulte).
Ces sons étonnants seraient un moyen pour ces fourmis immatures de faire valoir leur statut social et l’avancement de leur métamorphose. Pour capter les sons produits par les fourmis, les chercheurs ont placé un microphone ultrasensible à proximité d’œufs, de larves et de pupes à différents stades de maturité. EXOSQUELETTE. Grâce au son émis par les pupes, les adultes déterminent quels sont ceux qu'il faut sauver en premier ! Cat grows wings. Amazing Dog Knows 1,000 Words (And Has 1,000 Toys) Astrophysicist and TV host Neil DeGrasse Tyson just did a story on an amazing dog named Chaser, who recognizes 1,000 different words. Sure, the words are all names for the 1,000 toys(!)
In Chaser's collection, but she fetches the right one every time. That's quite a memory for a dog! To put Chaser to the test, Neil gave her a Darwin doll she had never seen before, and then asked her to find it. It took two tries, but Chaser learned the name of her new toy. She's either a doggy supergenius, or an example of what normal dogs can do if we ask them. More dogs of This Weiner Dog Plays Fetch with a Robot. Why the mantis shrimp is my new favorite animal. Mantis Shrimp, Peacock Mantis Shrimps, Breaking Glass, And Other Facts (VIDEO) Animals Published on April 14th, 2013 | by James Ayre The Mantis Shrimp periodically makes its way into the news, thanks to the bright and colorful bodies of the some of the species, and their interesting behavior/abilities.
Such as breaking glass aquariums. As a result, I’ve decided to provide some facts about them (the most interesting ones), some photos, and some video. Enjoy. Mantis shrimp are marine crustaceans that grow up to about a foot long, though sometimes noticeably larger. Many of the species are very brightly colored, in particular, the Peacock Mantis Shrimp Odontodactylus scyllarus stands out.
They were known as “sea locusts” by the ancient Assyrians, and are sometimes called “prawn killers” or sometimes “thumb splitters” in modern times, as a result of their powerful claws. And some of the larger species do in fact possess the ability to break through aquarium glass with a single strike, just like the popular rumor says.
Some other interesting facts: About the Author.