
Frogs: Most practicing fertilization outside: They put the eggs while the male embraced on his back, spilled semen. It is like the frog species of Suriname, the male fertilized eggs inserted in the cavities of the back of the female. They grow as a warts until they leave the tadpoles.
Ticks: while the female feeds on blood, puts the eggs. The mach, which had no penis, inserted in his nose and the vaginal orifice bigger. It turns and deposited a package of sperm that fits into your vagina, pushing it with the muzzle and paws. Behind them, the female loses her head, falls to the ground, lays the eggs and dies.
Chinches no longer copulate, some individuals have more than 200 links a day, and do not distinguish between them, so some other male inseminated. At copulate, they drilled with the penis carapaces of them, who stored semen and transported to the ovaries through the tissues. But if a female is pierced by six male dies then.
Mosquitoes: in this case, the male climbs on the back of the female, and argues with some hooks to it. Get rotate and is hanging below it. As opens her vagina, ejaculate a large amount of semen, with some 2,000 sperm. Afterwards, the female fuels him a quick kick. After this titanic effort, the male will only live a few more days.
Bees: the queen bee does not allow competition and the murders of his own condition. When it is hit by a zángano, this curve on her and her belly with strong contractions introduces his penis into the vagina with the prongs directed backwards. While attempting to withdraw its membership remains embedded in it and he pulled the entrails. He died to fall to the ground.