The male American lobster is clawing his way toward hegemony. Scientists say his unusually large crusher claw compared with other species can be irresistible to female lobsters and menacing to less-endowed males.

This means war—or at least a trans-Atlantic trade war.

Claw size is at the center of a push by Sweden to ban imports of live Homarus americanus to all European Union countries. The effort began with the release of an 89-page report in December by the Swedish Agency for Marine and Water Management, featuring a full-color, half-page photo of an American lobster and 13 instances of the words “invasive alien species.”

Read the full story

Have you listened to this article via the audio player above?

If so, send us your feedback around what we can do to improve this feature or further develop it. If not, check it out and let us know what you think via email or on social media.

A collection of stories from guest authors.

Join the Conversation