No need to fertilize, for increase in seed size”

Plant biologists at ITbM have made a key discovery that the contents in pollen tubes alone can increase the size of seeds, without the need for fertilization. This finding may be useful in developing crops, which can develop ...

When sex roles get reversed, some females develop a 'penis'

In many species, the males develop elaborated sexual traits to attract females and dissuade potential rival males through competition. Some iconic examples are the extraordinary feathers of the peacock or paradise birds, ...

Seminal plugs cost red-sided garter snakes dearly

Bubbling out of their hibernation burrows as the temperature begins to rise, male red-sided garter snakes only have one thing on their mind: mating. And with females in short supply, the pressure is on. But how much effort ...

Deploying exosomes to win a battle of the sexes

There are many biological tools that help animals ensure reproductive success. A new study in The Journal of Cell Biology provides further detail into how one such mechanism enables male fruit flies to improve their odds ...

Cricket fertility found to improve with age

UWA scientists researching the seminal fluid of field crickets (teleogryllus oceanicus) are a step closer to knowing why the insect's competitive fertilisation success increases with age.

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