Sperm move in packs like cyclists to push through thick vaginal fluid
In mock-ups of the female reproductive tract, bull sperm cluster in groups of two to four, which seems to help them swim upstream
Source: newscientist.com
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Face recognition technology for pigs could improve welfare on farms
Machine learning software can identify individual pigs based on their facial features with high accuracy, which could help farmers give animals individualised food and veterinary care
Source: newscientist.com
Hunter-gatherers kept animals for food before they farmed crops
Ancient dung hints that 12,000 years ago, a population of hunter-gatherers in what is now Syria kept animals like sheep or gazelles around – probably for food
Source: newscientist.com
Battery made of crab shell and zinc is rechargeable and biodegradable
A zinc battery made using a compound from crab shells can be recharged at least 1000 times and can biodegrade or be recycled at the end of its life
Source: newscientist.com
Megalodon shark could eat a whale in just a few bites
The first 3D reconstruction of a huge, ancient shark called megalodon suggests it was even bigger than previously thought
Source: newscientist.com