(PhysOrg.com) -- Male stick insects are becoming increasingly redundant, with new research showing some New Zealand female stick insects can reproduce as efficiently on their own as with a male mate.

While most animals reproduce sexually, some species rely solely on females for parthenogenetic reproduction. Even in these species, rare males occasionally appear. Whether these males retain ...

Among animals where sexual reproduction is common, there are quite a few species that reproduce only with females. In such species, females give birth to female offspring (this is called ...

Despite having sex with males, females of a Japanese stick insect species produce offspring that are genetically identical to themselves. Combined with other evidence, it suggests that the males of ...

Today the average human male can stay engaged in sexual intercourse for 5 to 7 minutes. For better or worse, the advent of the new premature ejaculation drug dapoxetine could bring that up to about 20 ...

Male (top) and female (bottom) Lord Howe Island stick insects from the captive-bred Ball's Pyramid population, also known as "tree lobsters," on a leaf at the Melbourne Zoo. Lord Howe Island Stick ...

A NEW super-sized species of stick insect has been discovered in a remote rainforest in Australia. The bug, which was caught on camera by researchers, measures a whopping 40cm (15.75 inches) long.

With their extraordinary ability to mimic twigs and leaves, stick insects are among nature’s most renowned masters of disguise. But it’s not just predators they’ve managed to avoid. Sneaky phasmatodae ...

The newly described stick insect Phryganistria heusii yentuensis is over a foot long (32cm), or 21 inches (54 cm) with its front legs stretched out. It's the second biggest living insect that has been ...