91色情片

A man working in the garden.

Humans

How to reap the benefits of crop rotation in your own garden

Even the smallest vegetable patch can benefit from the principles of crop rotation, says Clare Wilson

Society

China finds – then loses – traces of extraterrestial civilisations

Tom Gauld on the science of ducks

Twisteddoodles on the search for a good news story

FEATURE

Life

Fascinating shots of extinct and endangered animals and plants

"Idyllic Waterfall - Source de la Loue, France."

How and where was water first created?

Laughing out loud. Funny animal meme image of happy animals having fun. Hilarious wildlife picture of two beautiful friendly grey seals playing around and apparently joking in the sand.; Shutterstock ID 1270830436; purchase_order: -; job: -; client: -; other: -

Do any other animals have a sense of humour?

A senior black couple playing outdoors with their two dachshunds

Why do I love my dog when there are no evolutionary benefits? (Part 2)

Saltwater crocodile (Crocodylus porosus) swimming at water surface, split-level, New Guinea, Indo-pacific

This week鈥檚 new questions

2H2KWEE Orbits of planets in the Solar System

Space

How to catch a glimpse of a five-planet alignment this June

If you are up early this month, you might see Mercury, Venus, Mars, Jupiter and Saturn line up in the morning sky, says Abigail Beall

Humans

Is Uttoxeter鈥檚 World Parts Centre the answer to the world鈥檚 problems?

Tom Gauld on a professor’s latest discovery

Twisteddoodles categorises some numbers

Earth

Dazzling photo of a pink salt lake shortlisted for major competition