These “walking sharks” can lay eggs without spending extra energy, rewriting what scientists thought they knew about reproduction.

Epaulette shark remain 'remarkably stable' throughout a reproduction process.

Butterflies (Papilionoidea) come in a remarkable variety of colors and patterns, from the orange majesty of the monarch to the lustrous red and blue of the peacock butterfly, but all butterflies ...

New research reveals walking sharks reproduction involves no extra energy use, challenging long-held beliefs about marine ...

The reproductive physiology of equines encompasses a complex interplay of endocrine signals, ovarian dynamics and environmental influences that govern fertility in both mares and jennies. Central to ...

Brain processes involved in helping one learn may naturally fluctuate in line with the female reproductive cycle and be linked with molecule changes due to dopamine production, according to a new ...