Mating can be either monogamous or promiscuous for both males and females, and mating can include individuals from outside the group.

It is a form of assortative mating.

In some species, the female will eat the male after mating, but in any event, the male will not survive for long after mating.

The only cost in most flocks is a loss of free mating.

After mating, the fertilized egg remains in a suspended state until August or September.

On the bottom tier we have basic needs shelter, clothing, food, water, mating and so forth.

A mating system is a way in which a group is structured in relation to sexual behaviour.

As a measure, fertility rate is the number of offspring born per mating pair, individual or population.

Females mated with top mating males tend to return to the male the next year and search less.

The mating season occurs between September and December, during which the loud barks males make could be easily heard.

For this purpose, the first pleopods (legs attached to the abdomen) of the male are constructed as mating tools.

And it is He who , from fluid , created the human being . Then He made relationships through marriage and mating .

And it is He who , from fluid , created the human being . Then He made relationships through marriage and mating .

In the wild, mating has only been observed in March, but in captivity, they mate in April and August to November.

They are largely solitary, but come together for a few social interactions such as mating which occurs during the winter season.

It's the interchange of ideas, the meeting and mating of ideas between them, that is causing technological progress, incrementally, bit by bit.

These indicate a mating system known as scramble competition polygyny, where males cannot defend females or the resources that might attract them.

Mating occurs in July or August, and after a gestation period of 11 weeks, the female gives birth to 2 4 young.

There's something I'm developing here called social intensity syndrome, which tries to account for why guys really prefer male bonding over female mating.

She begins to lay about a week after mating and lays one egg every day or two the clutch comprises five to 12 eggs.

Locomotion The female worker ants do not have wings and reproductive females lose their wings after their mating flights in order to begin their colonies.

So they went on about their business and from a foot away, we're watching mating and courting and fighting and it is just an unbelievable experience.

New queens and males (drones) are produced towards the end of the summer, and after mating, the queens hibernate over winter in cracks or other sheltered locations.

Pinnipeds are semiaquatic they spend the majority of their time in the water, but need to return to land for important activities such as mating, breeding and molting.

These baleen whales come here between May and December, for mating and giving birth, because the water in the gulf is quieter and warmer than in the open sea.

Now if this signal is used for males and females to find each other for mating and they're dispersed, imagine the impact this could have on the recovery of endangered populations.

It happened during mating season that I lifted up my eyes, and saw in a dream, and behold, the male goats which leaped on the flock were streaked, speckled, and grizzled.

I was doing a pathetically slow speed of about 1.3 knots, and they were doing only marginally less pathetic speed of about 1.4 it was like two snails in a mating dance.

The high degree of effort directed at mate choice by females and the large skews in mating success directed at males with quality displays suggests that females gain important benefits from mate choice.

The story I wanted to do initially was just a small focus to look at the few weeks each year where these animals migrate down from the Canadian arctic to the Gulf of St. Lawrence in Canada to engage in courtship, mating and to have their pups.

At TEDGlobal 2010, author Matt Ridley shows how, throughout history, the engine of human progress has been the meeting and mating of ideas to make new ideas. It's not important how clever individuals are, he says what really matters is how smart the collective brain is.

The function of these lights is not yet fully understood some hypotheses have suggested they serve to compensate the krill's shadow so that they are not visible to predators from below other speculations maintain that they play a significant role in mating or schooling at night.

In the deep, dark ocean, many sea creatures make their own light for hunting, mating and self defense. Bioluminescence expert Edith Widder was one of the first to film this glimmering world. At TED2011, she brings some of her glowing friends onstage, and shows more astonishing footage of glowing undersea life.