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Sumatran tigers fall 17 per cent and have just two strongholds

5 December 2017

There are now only two viable populations of Sumatran tigers left in the wild, so if the cats are to be saved those areas have to be protected

Hummingbirds have massive hearts to power their hovering flight

1 December 2017

Birds that hover in front of flowers have huge hearts to power their energy-intensive flight, and even birds that glide effortlessly need fairly big hearts to keep it up

Baby pterosaurs were cute, defenceless and unable to fly

30 November 2017

Over 200 pterosaur eggs have been found at a site in China, the largest such discovery on record, and the embryos inside reveal what newly-hatched pterosaurs were like

A bacterium has been engineered to make 'unnatural' proteins

29 November 2017

A microorganism with two extra letters in its genetic code, can create proteins far more complex and versatile than anything found in nature

Keystone XL oil pipeline will go ahead despite last week's spill

21 November 2017

Last week the Keystone pipeline spilled 5,000 barrels of oil. This week Nebraska decided to allow the Keystone XL extension to be built right through the state

Weak links in US power grid vulnerable in event of catastrophe

16 November 2017

Largest study of 'cascading failures' finds that only a small subset of North America's power grid is at risk from domino-like electrical failure

Climate change blamed for Arabian Sea’s unexpected hurricanes

13 November 2017

A flurry of hurricane-strength storms struck the Arabian Sea in 2014 and 2015, and climate change seems to have played a role

A 'magic number' of people walking across a bridge makes it sway

10 November 2017

We thought walking in lock step made bridges sway, like London’s Millennium Bridge when it opened. But it turns out crowd size matters more than rhythm