Save the monarch butterfly from extinction
US government may add monarch butterfly to endangered species list after its population dropped 90 per cent in 20 years to 35 million last year
Mathematician's anger over his unread 500-page proof
Shinichi Mochizuki tried to prove a long-standing pure maths problem in 2012, but now complains people can't get to grips with his 500-page work
Zoologger: The tasty crab that looks like an ugly frog
Is it a frog? Is it a crab? One look at a frog crab explains its name, but how these curious animals evolved has long been a mystery
Spiny monster from the depths of world's oldest lake
Russia's Lake Baikal has more than 350 species of amphipod, including this beauty, which is unique to the lake
Pet theory: Why domestic animals look cute
Darwin wondered why floppy ears, spots and other traits are common in domesticated animals. Cognitive biologist Tecumseh Fitch thinks he has the answer
Celebrate your fat – it's fighting off infection
As well as keeping you warm, your muffin top may ward off the bugs. A study in mice suggests that fat cells release a chemical that harms bacteria and viruses
If you would like to reuse any content from New Scientist, either in print or online, please contact the syndication department first for permission. New Scientist does not own rights to photos, but there are a variety of licensing options available for use of articles and graphics we own the copyright to.
