Drop in migrating monarch butterfly numbers in Mexico

MEXICO CITY (AP) — The number of Monarch butterflies making it to their winter refuge in Mexico dropped 59 percent this year, falling to the lowest level since comparable record-keeping began 20 years ago, scientists reported Wednesday.

This winter, the butterflies covered just 2.93 acres (1.19 hectares), down from 7.14 acres (2.89 hectares) last year.


Image from Wikipedia

Read the rest here: http://www.nytimes.com/aponline/2013/03/13/world/americas/ap-lt-mexico-monarch-butterflies.html