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Cryptic crossword #50: Bolder jerk upset over rise in disorder (7)

4 February 2021

Challenge your brain by solving New Scientist's weekly crosswords on your mobile, tablet or desktop

Tom Gauld reworks his primate feeding study due to covid restrictions

3 February 2021

Tom Gauld's weekly cartoon

Twisteddoodles on the weirdness of cats

3 February 2021

This week's cartoon from Twisteddoodles

We have finally discovered how wombats make cube-shaped poos

3 February 2021

Scientists discover how wombats make cube-shaped faeces, plus the strange case of two silly pigeons and when Flash stopped the trains, in Feedback’s weird weekly round-up

This week’s new questions

3 February 2021

Is there any harm in drinking too much tea? And when I can’t remember something but know that the memory is in my head, how do I know that I knew it?

When walking, does a person who takes more steps get more exercise?

3 February 2021

One reader, out walking with his wife, takes five paces for every six of hers. Does this mean she is getting more exercise than him?

Why do some people struggle to tell left from right (continued)?

3 February 2021

New Scientist readers provide further insight into this surprisingly common problem, including a solution from the Guugu Yimithirr people of Australia and another using hay and straw to help soldiers march in step

Puzzle #99: Can you work out the real time on a vandalised clock?

3 February 2021

The school clock has been tampered with. Can you help work out the real time? Plus the answer to puzzle #98

Playing smartphone games could help researchers understand the brain

3 February 2021

You can help researchers studying the brain and mental health conditions by playing games on the Brain Explorer app, finds Layal Liverpool

Nature and tech create a ‘tree of life’ at Australia’s Lake Cakora

3 February 2021

This amazing image, taken using a drone in Lake Cakora, Australia, shows tea tree oil seeping into the lake’s drainage channels to create an arboreal pattern