Pesticides Mess with Immunity: Double whammy promotes frog deformities | Science News

ADVERTISEMENT

MISSION CRITICAL

Support credible science journalism.

Subscribe to Science News today.


News

Pesticides Mess with Immunity: Double whammy promotes frog deformities

By
2:00pm, July 10, 2002

Agricultural pollutants may conspire with parasites to derail frog development in many regions of North America, according to a new study.

Malformed frogs–with bent spines and extra or missing hind limbs–have been documented since the 1700s. However, since 1994, when Minnesota school children found deformities in many of the frogs they caught, unusually large numbers of malformed frogs have turned up from California to eastern Canada.

Scientists have fiercely debated possible causes, with ultraviolet light, chemicals, and parasites being top contenders

This article is available only to subscribing members. Join the Society today or Log in.

Get Science News headlines by e-mail.

More from Science News

From the Nature Index Paid Content