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Depending on the exact species, most piranhas grow to between 12 and 35 cm (5–14 in) long. A few can grow larger, with the largest living species, the red-bellied, reaching up to 50 cm (20 in). [13] [14] There are claims of São Francisco piranhas at up to 60 cm (24 in), but the largest confirmed specimens are considerably smaller. [15]
The breeding habits of piranhas in nature are mostly unknown, with most spawning research being done in aquariums. [21] Piranhas are usually able to breed by the time they are one year old. Female piranhas will lay several thousand eggs near water plants, onto which the eggs stick. The males then fertilize the eggs.
How dark the fish become depends on the local water conditions; fish in Peru appear to be the darkest and may be almost jet black. [2] The maximum recorded fish measurement standard length is 41.5–61 centimetres (16.3–24.0 in), [ 1 ] [ 3 ] although a more normal length is around 32 centimetres (13 in), [ 2 ] and they attain a maximum weight ...
Serrasalmus manueli, the Silver piranha or Manuel's piranha, is one of the largest species of piranha within the genus Serrasalmus.Its size and weight are still yet to be determined but it is safe to say that it reaches around the same size and weight as the black piranha.
Brown in color and covered with dark blotches, males grow to a total length (including tail) of 2–3 m (6 ft 7 in – 9 ft 10 in) and weigh around 40–50 kg (88–110 lb); while females grow to 1.4 m (4 ft 7 in) long and about 15–20 kg (33–44 lb). [7] Typical habitats of this caiman include lakes, rivers, and wetlands.
Orbeez water beads, before and after being added to water. Expandable water toys (also grow-in-water toys or grow monsters) are novelty items made from a superabsorbent polymer. They are toys that expand after putting them into water for anything from a few hours up to several days, depending on size. They shrink in saltwater or when exposed to ...
Examination of a 9 m (30 ft) giant squid, the second largest cephalopod, that washed ashore in Norway in 1954 In zoology, deep-sea gigantism or abyssal gigantism is the tendency for species of deep-sea dwelling animals to be larger than their shallower-water relatives across a large taxonomic range.
Piranhas are "basically like regular fish with large teeth". [125] Humboldt squid are large carnivorous marine invertebrates that move in schools of up to 1,200 individuals. They swim at speeds of up to 24 kilometres per hour (15 mph or 13 kn) propelled by water ejected through a siphon and by two triangular fins.