BBC - Science

1. National Trust warns UK's most precious heritage at risk from extreme weather

   A blurring of the distinctions between seasons is also a challenge for insects and their predators.

2. Bird flu kills 20 big cats at US animal sanctuary

   The animals - including a Bengal tiger, cougars and bobcats - have died of the virus over the past several weeks.

3. Deadline to record forgotten footpaths to be scrapped

   Walking campaigners welcome the move, which the government says will help prevent paths from being lost.

4. Illegal trade booms in South Africa's 'super-strange looking' plants

   A biodiversity hotspot has become the stomping ground of poachers.

5. Spacecraft attempts closest-ever approach to Sun

   The hope is the probe could help us to better understand how the Sun works.

6. Penguins and iceberg-watching: Marking Christmas in Antarctica

   Staff working out in the wilds of Antarctica share their Christmas Day plans.

7. Scientists unveil 50,000-year-old baby mammoth remains

   "Yana" is the latest pre-historic discovery in a crater in a remote region of Russia.

8. Major report joins dots between world's nature challenges

   A new approach is needed to tackle the interlinked crises afflicting the planet, scientists warn.

9. One in four properties at flood risk by 2050 - report

   Climate change could increase flood threats without improvements to defences, the Environment Agency warns.

10. Government unveils new powers to approve onshore wind farms

    The change is part of the government's new action plan for meeting its 2030 clean power target.