Auxin is a pivotal hormone in plants, orchestrating a myriad of developmental processes and enabling environmental adaptability. The discovery of PIN ...

You’ve potted, watered, de-pested, and pruned your houseplant — but after several months, you notice it looks less vibrant. It may be time for fertilizer. “Plants get their food from photosynthesis, ...

Climate change is reducing population densities of corals, which risks the onset of reproductive collapse once colonies become too far apart to achieve successful fertilization. Working with a natural ...

Abortion is a procedure to terminate a pregnancy. Birth control and emergency contraception do not end a pregnancy — they prevent a pregnancy from occurring in the first place. Birth control pills and ...

The process of internal fertilization occurs when two organisms engage in sexual reproduction that results in combining a sperm cell with an egg inside of the female body. The vast majority of animals ...

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Egg and sperm cell size evolved from competition. Limited resources drove gametes to differ vastly in size and number. In most living animals, egg cells are vastly larger than sperm cells. In humans, ...

We show that Bouncer’s homolog in mammals, SPACA4, is required for efficient fertilization in mice. In contrast to fish, in which Bouncer is required for female fertility, SPACA4 is expressed ...