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Samoan tsunami explained
A series of Herald graphics explores the science behind the tsunami that devastated Samoa.
Beaches still risky, health officials warn
Public health officers are warning parents to closely watch children - and look out for toxic sea slugs - on Hauraki Gulf beaches.
Sun may help battle skin cancer, studies find
Sunbathing is known to cause skin cancer - but it may also help people survive when they get it, scientists are reporting.
Rat poison discovered in dead penguins
Traces of the rat poison, Brodifacoum, have been found in two little blue penguins that died in the Hauraki Gulf.
Boy or girl? The baffle of the sexes
The gender row over South African runner Caster Semenya shows the line dividing males from females is far from clear.
DoC looked at delaying poison drop
The head of the Department of Conservation said rat poison drops on two Hauraki Gulf islands should be delayed over public concerns.
Marking tool can catch burglars blue-handed
A new marking device that invisibly codes property could see burglars caught blue-handed.