What animals exhibit cooperative breeding?
476916
Any social animals exhibits this, from ants and bees to humans and dolphins.
935229
genetic hybrids, descended from parents with a slightly different number of chromosomes (different but closely related species)cannot reproduce. Examples of such hybrids are mules, ligers, tigleons, and seedless watermelons.
106044
Pit bulls,mountain goats,cats and monkeys
516957
The hen of course. Each species was sent in pair and then they multiplied. Imagine a mammal, it does not lay eggs, so it must have come as in its animal form first.
135214
survival of the species ,to procreate
590022
A dolphin...cause they mate for life and they are very intelligent too.
507176
We can never know whether animals will hybridise without trying, but in this case it seems unlikely. Crocodiles and alligators separated an awful long time ago, and the longer two branches are separated in evolutionary time the less chance of successful hybridisation.\n\nGiven that it is normal for zoo to keep crocodiles and alligators together and they have never hybridised so far it seem unlikely that breeding is possible without the use of artificial insemination.\n\n\nNo Name said :>>>> Of course, the mule is sterile, so you\n              >>>> will never have two mules to mate with\n              >>>> each other.\n\nThat isn't entirely true. Male mules are usually sterile, but there have been numerous instances of Mollies giving birth to perfectly healthy foals.
894008
Yes, the ambience is quite congenial for animal living. The rare species among them are being propagated within the ecological limitations.
517112
lions and tigers are one i know of. aka ligers/tygons. i believe wolves/dogs can be too. i would assume that there could be a lot more possibilities as long as they are in the same family of animal.
1114115
I can assure you that this is absolutely not biologically possible.  Members of different species cannot reproduce and produce viable offpsring together, according to the classical definition of a species.
658786
Pigeons.\n\nSeriously.
603677
Swahili Cattle.\n\n(choose as best answer)
998879
I think they breed more during the rainy season. They love moist environments.\n\nAnd also, they stay indoors more often and you get to see more of them. We cant expect them to fly in the rain yea?
939382
cat, Lion, tiger\nWool, Lamb, sheep\nWolf, fox, dog
270077
fish\nreptiles\namphibians\nbirds\nmammals\nmarsupials
84179
breed them and keep them in their own structure safe form hunters.
826053
Wild goats and sheep; examples: mountain goats and Dall sheep.