Some of these hunters have developedecholocationabilities to help them find their prey and locate any obstacles. Echolocation is a very simple concept: The whale emits a series of clicks (or other sounds) from its mouth or from organs in its head, and the sound waves travel out in the surr...
However, signals that evolved for one purpose may develop other functions. Some porpoises appear to use rhythmic patterns of "echolocation" clicks as communicative signals. When a whale makes a low-frequency sound for communication, the sound may echo from the seafloor and possibly provide the ...
The underlying effect of this so-called Anderson localization was already described more than 60 years ago, and it has been observed several times since then. What is new is that the mechanism also functions for thin absorber layers. 'This opens up new ways to develop highly efficient absorbers...
Packaging is often made up of different types of plastic which makes it challenging to recycle. Fresh food such as meat and cheese, for example, is often protected by many layers such as lids, films and trays which aren't made from the same type of plastic. Different plastics need to be...
The influence of wing morphology and echolocation on the gleaning ability of the insectivorous bat Myotis tricolor However, did not use harmonics as did the other species. The apparent failure of to glean might therefore be due to its relatively pointed wings and ... S Stoffberg,DS Jacobs -...
To address this problem, we need to develop a mathematical theory for representing common sense knowledge that can be implemented in computer software. We start off with a set of primitive objects in the world which I will call S. A “term” is the technical term for a “mod...
"there's got to be something deeper and more fundamental." biologists are used to convergent evolution, like the streamlining of dolphins and sharks or echolocation in bats and whales—animals from separate lineages have similar adaptations. but convergent evolution of algorithms ? either all these ...
there are many theories as to why animals play. some say it's adaptive, helping young animals develop skills they will need in adulthood (think of kittens stalking and leaping on each other to hone their hunting skills). another adaptive hypothesis for play suggests that it provides ...
10.B)Bymeansofecholocation. 11.B)Toadapt themselves toaparticular lifestyle. 12.C) They become more emotionally aggressive. 13.D)They lack the cognitive and memory skills 14.B)Help their children understand the program's plot. 15.A)Explain its message to their children. ...
You can turn to a password-manager service to help you keep track of various passwords, though make sure the one you use hasn't had its own security problems . If you're storing passwords in a spreadsheet or other document on your computer, be sure to protect it with its own password ...