Catfish are a group of bottom-feeding fish that are found in freshwater habitats and coastal regions on and around every continent in the world with the exception of Antarctica. Catfish are most easily identified by their flattened broad heads and the long whisker-like barbels that protrude from the mouth of the catfish.
The long barbels of the catfish contain the taste buds of the catfish and so are often most commonly used for smelling and therefore sensing what is about to eat (and to hide from) in the surrounding waters. Despite the name however, not all catfish species have prominent whisker-like barbels.
There are nearly 3,000 known species of catfish in the world but it is
Asian elephant skin is gray in color. Some parts of their skin sometimes lack color, especially on and around the ears, forehead and trunk. This de-pigmentation is believed to be controlled by genetics, nutrition and habitat, and generally develops as the elephant ages. Brownish to reddish hair covers the bodies of young elephants. The amount of hair reduces with age, and the color darkens.
Elephant skin varies from paper thin in some places, such as on the inside of the ears, to as thick as 1 inch (2.54 centimeters) in other places, such as around the back. Despite its thickness, the skin is sensitive, having a rich nerve supply. Elephants protect their skin from the sun and bugs by r
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The mayfly is medium-sized insect that is found in a variety of habitats all around the world. The mayfly is one of the most short-lived animals in the world and is most closely related to dragonflies and damselflies.
There are 2,500 known species of mayfly generally found close to water, all around the world with over 600 species of mayfly natively found in North America. Mayflies are extremely sensitive to pollution and can therefore only be found close to water that is of a high quality.
Mayflies have long narrow bodies and large wings, with a second set of smaller hind wings behind them (in a similar way to butterflies and moths). This allows the mayfly to have greater agilit
