51动漫

2CXYTWB Close up of a green cicada insect bug on a plant

What triggers cicadas to make noises in unison, then go silent?

Male cicadas sing to attract mates, but this also alerts passing predators - it is bad news to be the last singer, say our readers

2JAN5P2 Holland Street meets the steep Albion Hill in the Hanover neighbourhood of Brighton

Do people in hilly towns have better health than those in flat towns?

Golden lion tamarin; Shutterstock ID 121264012; purchase_order: -; job: -; client: -; other: -

This week鈥檚 new questions

Finger food is now on the menu at Chopt salad chain

Tom Gauld on Artbot Version 2.0

Twisteddoodles on how to handle a visit from the bomb squad

2021_ManateeHabitat

Life

Diving with manatees in Mexico’s unexplored caves

Planted new trees in a park in an urban environment.

Life

Why staking a new tree can do more harm than good

K4E74X The Earth from space. This image elements furnished by NASA.

If Earth stopped rotating, would this affect the force of gravity?

purebred beagle puppy is learning the world in first time; Shutterstock ID 566398009; purchase_order: -; job: -; client: -; other: -

Why do we say 鈥渁ww鈥� when we see small, fluffy things?

Humans are wired to find certain things adorable, say our readers, such as big eyes and small noses

This week鈥檚 new questions

What voodoo dolls can teach us about toxic masculinity

Tom Gauld on the early stages of a project

Twisteddoodles on a site where people can pay to watch … research