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The pedicels attaching the flowers to the main stem are 0.5–1 millimeters and the flowers resemble a pink, reddish-purple, or purple (rarely white) head of an elephant to a remarkable extent. [ 4 ] [ 9 ] In addition to reflecting visible light, the petals of the flowers also reflect ultraviolet light. [ 7 ]
The examples include ground vibrations produced by elephants whose principal frequency component is around 15 Hz, and low- to medium-frequency substrate-borne vibrations used by most insect orders. [15] Many animal sounds, however, do fall within the frequency range detectable by a human ear, between 20 and 20,000 Hz. [16]
When comparing an elephant's vocal folds to those of a human, an elephant's are longer, thicker, and have a larger cross-sectional area. In addition, they are tilted at 45 degrees and positioned more anteriorly than a human's vocal folds. [18] From various experiments, the elephant larynx is shown to produce various and complex vibratory phenomena.
Unless you know what to look for, you may not notice the differences between an African elephant vs. Asian elephant. These two elephant species belong to different genuses and have many ...
Localization was tested by observing the successful orienting towards the left or the right source loudspeakers when they were positioned at different angles from the elephant's head. The elephant could localize sounds best at a frequency below 1 kHz, with perfect identification of the left or right speaker at angles of 20 degrees or more, and ...
The African bush elephant (Loxodonta africana), also known as the African savanna elephant, is a species of elephant native to sub-Saharan Africa. It is one of three extant elephant species and, along with the African forest elephant , one of two extant species of African elephant .
An elephant's skin is generally very tough, at 2.5 cm (1 in) thick on the back and parts of the head. The skin around the mouth, anus , and inside of the ear is considerably thinner. Elephants are typically grey, but African elephants look brown or reddish after rolling in coloured mud.
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