A dinosaur that seemed to be an evolutionary mishmash turns out to have a key place in history.
Campaigners plan to plant enough trees to counteract the climate impact of the US President.
A breakthrough could lead to easier, faster and cheaper vaccines.
Galapagos photography competition 2017
Astronomy photo of the year shortlist
Field crickets return from brink of extinction
Supersonic car is set for low-speed runs
10 years of Galaxy Zoo, a citizen science phenomenon
Will nuclear fusion always be 30 years away?
Programmes, video and downloads: Solutions to air pollution from across the world
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