Alien invaders
Rosemary beetle

Page last updated at 07:26 GMT, Tuesday, 9 March 2010

Red squirrel (SPL)
Some red squirrels have developed immunity to a deadly disease carried by grey squirrels, scientists find.

FEATURES
Meet 10 new aliens that could cause havoc in the UK
Welcome to the weird world of waterway aliens
Is there an alien growing in your garden?

VIDEO FEATURE

Squirrel cam

Baby red squirrels are spotted on the BBC's squirrel-cam (footage speeded up).

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Squirrel cam: Baby red squirrels caught on film (footage speeded-up)

FEATURES
Meet the alien insects spreading throughout the UK
Expert answers your alien invader questions
Your photos of alien invaders that you have spotted
KEY STORIES
VIDEO REPORTS

Non-native crayfish Alien 'thugs' set to meet


Tube web spider On the trail of the tube web


Japanese knotweed Superweed's astonishing growth


KEY ALIEN INVADERS

info-graphic

Plants

  • Rhododendron
  • Japanese knotweed
  • Himalayan balsam (pictured)
  • Giant hogweed
  • Floating pennywort

info-graphic

Creepy crawlies

  • Red lily beetle (pictured)
  • Harlequin ladybird
  • Oak processionary moth
  • Rosemary leaf beetle
  • New Zealand flatworm

info-graphic

Waterlife

  • Slipper limpet (pictured)
  • Signal crayfish
  • Chinese mitten crab
  • Pacific oyster
  • Zebra mussel

info-graphic

Mammals and birds

  • American mink (pictured)
  • Grey squirrel
  • Ring-necked parakeet
  • Ruddy duck
  • Muntjac deer

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