Delegates from 178 countries will review the convention on international trade in endangered species (CITES) amidst an unprecedented extinction crisis.

Thailand's Prime Minister Yingluck Shinawatra says she will amend her country's laws to ban the legal trade in ivory.

The suspected onset of diabetes may have been behind the frostbite that forced explorer Sir Ranulph Fiennes to pull out of an Antarctica expedition, he tells the BBC.