Asexual reproduction, in which females reproduce without males by cloning themselves, has been documented in multiple species ...

Heat and cold reshape fertility in reptiles, from scrambled sperm to sex reversal, with lessons for evolution under climate ...

Bumblebees bring pollen from one flower to another, allowing the plant to fertilize their seeds. Salmon travel upstream to meet with other fish from the river and fertilize their eggs. Elephants mate ...

Sharks, skates and rays adapt their growth and reproduction to changing food availability, a new study reveals.

The monarch butterfly has long faced threats that have led to dwindling populations. However, a new study aimed at ...

The use of assisted reproductive technologies like in vitro fertilization is becoming more common worldwide. However, while ...

Sexual reproduction is the production of a new organism from two parents by making use of their sex cells or gametes. In this process male gametes fuses with a female gamete to form a new cell called ...

Biodiversity is disappearing at an alarming rate and is driven by human activity: contamination, greenhouse gases and extreme ...

The state wildlife department in Vermont is studying the reasons for increasing numbers of black bears in the Green Mountain State.