xplores the various methods of animal reproduction, highlighting the dependency of young animals on their parents, particularly in mammals, birds, and amphibians. It explains both asexual ...

Both usually produce few young at one time, and ensure their survival by caring for them. Unlike mammals, birds lay eggs and initial stages of development occur outside the mother’s body. Reproductive ...

Most animals carry out sexual reproduction. Sexual reproduction involves the joining of two sex cells or gametes – the sperm (male gamete) and the egg or ovum (female gamete). The male and ...

A mammal that was once considered eradicated from the state of Ohio is now colonizing again in the state, biologists say.The Ohio Department of Natural Resources said fishers, a mammal related to ...