Wednesday, May 18, 2022 | Last Update : 03:23 AM IST

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Molecule identified that helps sperm find egg cells

Sperm swims up to reach the egg, assisted by a pulsatile rise in calcium ion concentration in the sperm tail that controls its beating.

06 Aug 2018 7:04 PM

2017 set to be hottest non-El Nino year: UN

Some 30% of the world's population now experience "extreme hot temperatures" for at least several days each year, the UN agency said.

06 Nov 2017 6:21 PM

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