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Underwater hearing is by bone conduction, and localization of sound appears to depend on differences in amplitude detected by bone conduction. [7] As such, aquatic animals such as fish have a more specialized hearing apparatus that is effective underwater. [8] Fish can sense sound through their lateral lines and their otoliths (ears).
One physiological characteristic of sleep goes by the name of "homeostatic regulation". This is the notion that animals need a more or less constant amount of sleep every day, so that if a subject is deprived of sleep one day, the amount of sleep tends to "rebound" (increase) the next few days. This has been observed in zebrafish. At night ...
[1] [2] This suprabranchial organ, or labyrinth organ, allows some species the capability of traveling short distances on land (walking catfish). [1] Air-breathing organ of walking catfish. The dorsal fin base is very long and is not preceded by a fin spine. The dorsal fin may or may not be continuous with the caudal fin, which is rounded.
Oxydoras niger, the ripsaw catfish or cuiu cuiu, is a species of thorny catfish native to the Amazon, Essequibo and São Francisco basins in Bolivia, Brazil, Colombia, Ecuador, Guyana, Peru and Venezuela. It is the largest member of the Dorididae family.
Kryptopterus vitreolus is a small, transparent-bodied, freshwater-dwelling catfish with two long sensory barbels. Standard lengths for mature fish may range up to 8 cm (3.1 in), but usually only reach around 6.5 cm (2.6 in) in total length. [2] Their bodies are transparent because, like all catfish, they lack scales.
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The research found that about 41 percent of sleepers who slept on one side had nightmares, compared to 14.6 percent of sleepers who turned the other way. Sleeping on one specific side could give ...
Nothing, really, except maybe some face-time on the big screens above center ice and a showering of applause from approving Predators faithful. Road arenas can be a different story.