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A common use of ultrasound is in underwater range finding; this use is also called sonar. An ultrasonic pulse is generated in a particular direction. If there is an object in the path of this pulse, part or all of the pulse will be reflected back to the transmitter as an echo and can be detected through the receiver path. By measuring the ...
Babies, also known as Baby(ies) and Bébé(s), is a 2010 French documentary film by Thomas Balmès that follows four newborns through their first year after birth. Two of the babies featured in the film are from rural areas: Ponijao from Opuwo, Namibia, and Bayarjargal (Bayar) from Bayanchandmani, Mongolia, and two are from urban areas: Mari from Tokyo, Japan, and Hattie from San Francisco, U ...
Echolocating bats use echolocation to navigate and forage, often in total darkness. They generally emerge from their roosts in caves, attics, or trees at dusk and hunt for insects into the night. Using echolocation, bats can determine how far away an object is, the object's size, shape and density, and the direction (if any) that an object is ...
Pages in category "Animals that use echolocation" The following 24 pages are in this category, out of 24 total. This list may not reflect recent changes. A.
Bolas: Bolas spiders are unusual orb-weaver spiders that do not spin the webs. Instead, they hunt by using a sticky 'capture blob' of silk on the end of a line, known as a ' bolas '. By swinging the bolas at flying male moths or moth flies nearby, the spider may snag its prey rather like a fisherman snagging a fish on a hook.
In some cases the spider vibrates the web of other spiders, mimicking the struggle of trapped prey to lure the host closer. Pholcids prey on Tegenaria funnel weaver spiders, and are known to attack and eat redback spiders, huntsman spiders and house spiders. [10] [11] A cellar spider which has captured a house spider, in a domestic setting.
Spider populations don’t just fluctuate in size, but in type. In the L.A. Basin, there’s a good chance of peeping a venomous brown widow, the most commonly observed spider in the area on ...
Animal echolocation, non-human animals emitting sound waves and listening to the echo in order to locate objects or navigate. Human echolocation , the use of sound by people to navigate. Sonar ( so und n avigation a nd r anging), the use of sound on water or underwater, to navigate or to locate other watercraft, usually by submarines.