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The spawn (eggs) of a clownfish.The black spots are the developing eyes. Spawn is the eggs and sperm released or deposited into water by aquatic animals.As a verb, to spawn refers to the process of freely releasing eggs and sperm into a body of water (fresh or marine); the physical act is known as spawning.
The eggs have an average diameter of 1 millimetre (0.039 in). The eggs are generally surrounded by the extraembryonic membranes but do not develop a shell, hard or soft, around these membranes. Some fish have thick, leathery coats, especially if they must withstand physical force or desiccation. These type of eggs can also be very small and ...
Sea krait. Sea kraits are a genus of venomous snakes (subfamily: Laticaudinae), Laticauda. They are semiaquatic, and retain the wide ventral scales typical of terrestrial snakes for moving on land, but also have paddle-shaped tails for swimming. [1] Unlike fully aquatic ovoviviparous sea snakes, sea kraits are oviparous and must come to land to ...
Kōhaku (紅白 (kōhaku, "red and white")) is a variety of ornamental koi . The Kōhaku has a white body, with red markings across the body. It is considered one of the ‘Big Three’ varieties of Koi, along with the Sanke, and Showa. [1] The Kōhaku breed is believed to be one of the first ornamental carp varieties developed.
Grunion eggs can extend incubation and delay hatching if tides do not reach them for an additional four weeks after this initial hatching time. Most of the eggs will hatch in 10 days if provided with seawater and the agitation of the rising surf. The mechanical action of the waves is the environmental trigger for hatching.
The eggs are not fertilized within the female; they are fertilized as they pass from the ovaries to the outside of the body. Therefore, it is certain that any shrimp carrying eggs has mated. A two day-old Neocaridina davidi (red morph) shrimp (roughly 1 mm (0.039 in) in length) They have 20–30 eggs, which take 2–3 weeks to hatch.
Fish intelligence. Fish intelligence is "the resultant of the process of acquiring, storing in memory, retrieving, combining, comparing, and using in new contexts information and conceptual skills" [1] as it applies to fish. Due to a common perception amongst researchers that Teleost fish are "primitive" compared to mammals and birds, there has ...
Koi ponds or lakes are a traditional feature of Japanese gardens, but many hobbyists use special ponds in small locations, with no attempt to suggest a natural landscape feature. The architecture of the koi pond can have a great effect on the health and well-being of the koi. The practice of keeping koi often revolves around "finishing" a koi ...