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New travel rules for UK visitors kick in today - find out how this affects you
From 25 February, a new system will come into force which will affect many people, including British dual nationals.
Why scientists fear Emperor penguins' annual moult may be killing them
Each year the birds must stay on floating ice long enough to replace their weather-beaten feathers.
Emperor Penguins moult to survive, but scientists fear it may now be killing them
The birds moult to protect themselves, but in a warming world, it could be endangering them.
Emperor Penguins moult to survive, but scientists fear it may now be killing them
The birds moult to protect themselves, but in a warming world, it could be endangering them.