杏吧原创

Twisteddoodles puts a ring on it

This week's cartoon from Twisteddoodles

A red-eyed tree frog in its Costa Rican rainforest home

Earth

Some of the stunning winners of the Sony World Photography Awards

Big Microplastic Survey. Layal?s Citizen Science Maker for 18th Feb. Photos from Layla's survey.

Environment

Help to create a global map of ocean microplastic pollution

2CTJXXG Male fitness instructor with women lifting weights while standing in yard

Doing strenuous exercise, it helps to shout the number of reps. Why?

Would a tug of war be possible over 42 km between France and England?

CX3N1D three 3 old men friends talking arguing discuss

How much of my body from 40 years ago is part of me today? (part 2)

Farmer harvesting organic rhubarb from her kitchen garden. Rhubarb can be harvested many times through the year. Photographed at an ???off grid??? home on the island of Moen in Denmark. Colour, horizontal format with some copy space.

This week鈥檚 new questions

The strange story of the nuclear submarine and the super glue repair

Tom Gauld: Gavin failed the archaeological statistics course

Twisteddoodles: Being a scientist often involves disappointment

This week's cartoon from Twisteddoodles

Earth

Magnificent photograph captures eruption of Fagradalsfjall volcano

Life

How a log pile in your garden can be a haven for wildlife

When is a bear’s face not a bear’s face? When it is a Mars bear

What is the most efficient way to load passengers into an aircraft?