Menstruation, while fundamental for human reproduction, remains a rarity in the animal kingdom. Why have some species evolved ...

3. Hormones in reproduction.--v. 4. Reproductive patterns.--v. 5. Artificial control of reproduction.--Book 6. The evolution of reproduction. --Book 8. Human sexuality Date 1972 1972-<1980 > Call ...

Genetic diversity is essential to the survival of a species. It's easy enough to maintain if a species reproduces sexually; ...

W hile some species of lizards and snakes can create new life via asexual reproduction, mammals rely on the union of male and female gametes for reproduction. 1 That was until a few years ago, when ...

The findings provide strong evidence that imprinting abnormalities are the primary barrier to unisexual reproduction in mammals – although the study is not without its limitations.

New study challenges old views on what's 'primitive' in mammalian reproduction Date: July 25, 2022 Source: University of Washington Summary: Which group of mammals has the more 'primitive ...

Though humans and mammals have to rely on sex to procreate, many animals have other options. Sea stars, wasps, marbled crayfish, jellyfish and ants are just a few species that can reproduce asexually.

Scientists say they have documented the first virgin birth in a crocodile. And while the concept may sound bizarre to humans, this type of reproduction is not unheard of across the animal kingdom ...

For mammals, the amount of indirect energy–the previously unquantified metabolic cost to synthesize and carry offspring–composes about 90% of the total energy used in the reproduction process ...

Changing environmental conditions may threaten marine mammal populations by making it harder to find prey, and a new study shows how small, gradual reductions in prey could have profound ...