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Deep-sea chimaera photographed by the NOAAS Okeanos Explorer.Visible on its snout are tiny pores which lead to electroreceptor cells.. Chimaeras are soft-bodied, shark-like fish with bulky heads and long, tapered tails; measured from the tail, they can grow up to 150 cm (4.9 ft) in length.
As for length, the longest extant bony fish on earth is the giant oarfish (Regalecus glesne). Slender and compressed, it averages over 6 m (20 ft) long at maturity. A specimen caught in 1885 of 7.6 m (25 ft) in length weighed 275 kg (606 lb). The longest known example, which was hit by a steamship, was measured as 13.7 m (45 ft) long. [1]
Cyclothone is believed to be the most abundant fish genus on Earth, with estimates that there are up to a quadrillion individuals (10 15, or one million billion in the short scale). [ 2 ] [ 3 ] Their abundance is so large that they are also believed to be the most abundant genus of vertebrate on earth.
The colors of the Parrot Fish will change several times over the course of their lifespan. But their mouths look like they are always grinning. They are generally social creatures and travel in ...
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Larva of the Devils Hole pupfish. The Devils Hole pupfish consumes a variety of food items representing nearly all possible food resources in Devils Hole. [23] Its food resources include inorganic particulate matter; the algae Spirogyra and diatoms; the freshwater crustaceans Hyalella azteca and ostracods; protozoa; the beetle Stenelmis calida; the flatworm Girardia dorotocephala; and the ...
Another factor that threatens the native axolotl population is the introduction of invasive species such as the Nile tilapia and common carp. These invasive fish species threaten axolotl populations by eating their eggs or young and by out-competing them for natural resources.
The world's smallest fish depends on the measurement used. [1]Based on minimum standard length at maturity the main contenders are Paedocypris progenetica where females can reach it at 7.9 mm (0.31 in), [2] [3] [4] the stout infantfish (Schindleria brevipinguis) where females reach it at 7 mm (0.28 in) and males at 6.5 mm (0.26 in), [1] and Photocorynus spiniceps where males can reach it at 6. ...