On March 20-21, 2014, plant scientists will organize the International scientific and practical conference “Botany and ecology to create a comfortable human environment”, which will be held on March 20-21, 2014 at Park Inn by Radisson Hotel Heathrow, London, U.K.
Sacculina is a parasitic arthropod from a crustacean subtype. The process of its development can serve as an excellent plot for a horror movie. “Alien” in the animal world The larva of the female parasite (which looks so innocent), travels for some time in the water column in search of suitable “prey” (nauplius stage). After 4-5 days, a small chitinous shell begins to appear in it (cypris stage). From this point on, sacculina has only one goal – to find a suitable crab as soon as possible, to gain a foothold on it and develop further.
One of the components of the successful breeding of tarantulas is their early sex determination. Males of spiders mature much earlier than females, so by the time when females mature, they already lose the ability to reproduce, as a result of which synchronization of individuals of a different sex from one cocoon is not possible. When it comes to popular spiders, this is not a problem, you can always find a younger male and grow up, but there are also such types of bird spiders that are quite rare on sale and it would be a pity to miss the opportunity to get offspring from them. If one learns to determine the sexual identity of the spiders at the first ages and to create the appropriate conditions for individuals of different sexes in the future, then it may happen that both sexes mature at the…