This story appears in the November 2016 issue of National Geographic magazine. In sexual reproduction—the way most life-forms procreate—each parent provides half an offspring’s chromosomes.

In the final frenzy of reproduction and death, social amoebas secrete proteins that help preserve a starter kit of food for its offspring. Lectins create a different way for the amoebas to treat ...

Every living organism relies on a genetic blueprint encoded in its DNA, yet the amount of DNA - or genome size - varies ...

Microorganisms—bacteria, viruses and other tiny life forms—may drive biological variation in visible life as much, if not ...

Between 1.8 billion and 800 million years ago, earthly life was in the doldrums. During this period, called the "boring ...

To reproduce, animals need a male and female. Together they can create offspring, or babies. Some animals, such as chickens, fish and snakes, lay eggs which contain their offspring. Other animals ...

Look at these competency-based questions for Class 12 Biology chapter 11 Reproduction In Organisms and the answer key.

Giant isopods, giant jellyfish, even giant amoebas, the list goes on ... A larger animal needs more food, takes longer to ...

Sexual vs. asexual reproduction Reproduction as we commonly conceive it, not only in humans but in all species, occurs sexually, that is, from the combination of the genetic material of two ...

Half advice show. Half survival guide. Half absurdity-fest. (Wait, how does this work again? We're not numbers people.) Each episode, we answer all your burning questions, from how to survive a ...