A strange and different way an animal reproduces?

Question

For a science project we must select an animal who reproduces in a different way. Not the old fashion sex way.

Answer 1

One of the weirdest ones I know of involves dueling flatworms.

The flatworms are hermaphroditic, and impregnate each other by harpooning their opponent with their penis, and injecting them with sperm.

A worm that is very good at dueling can impregnate a lot of other worms before becoming so damaged by mating itself that it has to stop.

However a worm that is bad at dueling becomes pregnant easily, and thus passes on its bad dueling ability to its offspring - therefore both good duelers and bad duelers have reproductive advantages.

Here's a page with a little more information about them http://www.sciencenews.org/pages/sn_arc98/2_14_98/fob2.htm

Answer 2

You might select the hydra, which is an aquatic Hydrozoan. It "buds" or produces a small outgrowth on the body wall that eventually grows to resemble the parent. It breaks away and becomes a separate individual. This is a form of asexual reproduction. Another member of the group, Obelia goes through a similar process in a very interesting way. Check the internet.

Answer 3

Crabs can only mate when the female molts, as the normally hard exoskeleton makes mating difficult. A male will latch onto a female when he senses she is about to molt. When she finally does, he mates with her as the new exoskeleton is soft. The whole story on mating crabs ---->http://www.bluecrab.info/mating.html

There are a few species of Whiptail lizard that are all female. No males exist in these species. The eggs don't require any fertilization, but the females need to participate in the act of mating in order to enhance their fertility. These lizards are found in the Southwest US and Mexico.
http://www.amnh.org/exhibitions/expeditions/treasure_fossil/Treasures/Unisexual_Whiptail_Lizards/lizards.html?50
http://media.www.dailytexanonline.com/media/storage/paper410/news/2006/02/06/LifeArts/Ut.Lab.Studies.GenderBending.Lizard.Mating-1599792.shtml

Answer 4

The Brahminy blind snake or "flowerpot snake" (Ramphotyphlops braminus) is a parthenogenetic species, meaning it is entirely female - there are no males, and each female simply produces young that are genetic copies of herself (clones, basically).

Among seahorses it is the male who becomes pregnant, after the female lays her eggs in the brood pouch on his stomach. This is an interesting role reversal of the sexes.

Answer 5

bypass camping out or trekking in the "wild"... i'm going to wager which you have a deeper appreciation for the encompassing elegance than your community chipmunk. i'm going to additionally wager that your skill for making plans and reasoning is critically bigger than suggested chipmunk, proposing you with a miles greater mushy, relaxing and greater secure holiday - than a "combat for survival". in case you have been remoted on a tropical island... what's to end you from.... Robinson Crusoe- form: + making pottery + construction shelter + planting plant life + etc.... a.ok.a. civilization? No animal can do any of that!

Answer 6

Well, it's not exactly a strange way of reproduction, but bees have a pretty interesting reproductive cycle, which includes exploding genitalia...look it up.

Answer 7

sea urchins release sperm into the water & they find an egg to go in. search it up