Captain Paul Watson, founder of Sea Shepherd and co-founder of Greenpeace, has been arrested on July 21 under an international warrant issued by Japan. At the time of his arrest, he was in Greenland.

TOKYO, Japan (CNN)-- Anti-whaling groups have claimed partial victory in their attempts to disrupt Japan's annual whale hunt in Antarctic waters. Dogged by Greenpeace and Sea Shepherd Conservation ...

This year's 101-day hunt was dogged by Greenpeace and Sea Shepherd Conservation Society vessels. The Japanese whaling fleet caught 551 minke whales -- more than a third less than its goal of 850.

Environment group Greenpeace and New Zealand Deputy Prime ... Antarctic for its annual killings” Marine conservationists Sea Shepherd are claiming Japan's decision to abandon whaling around ...