Biology News
Biology: One hope for controlling ever-growing carbon dioxide levels: the humble leaf - The Columbus Dispatch


The Columbus Dispatch
The average concentration in the air of the greenhouse gas carbon dioxide broke all previous records in April. Charles Keeling started collecting these records in 1958 at the Mauna Loa observatory in Hawaii. He soon found two trends in his records.

Leaf Frogs

Arlington Heights - United States

Photographs and information on several well camouflaged frogs of the Megophrys genus commonly known as leaf frogs, horned frogs or litter frogs.

Related
Leaf Identification
United States

Instructional unit from the Department of Horticulture at Penn State University. Includes information on identifying leaves by structure, shape, groupings, margins, and arrangement.

True Frogs
United States

Photographs and information on several frogs from Southeast Asia in the genus Rana.

Microhylid Frogs
United States

Photographs and information on several frogs from Southeast Asia in this family.

United States

Photographs and information on several frogs in the genus Theloderma from Southeast Asia.

Frogs of Tasmania
Australia

A guide to Tasmania's frogs from the Tasmanian Parks and Wildlife Service. Includes sound files of frog calls.

MidWest Frogs
United States

Video clips of frog calls in QuickTime format.

Frogs.org
United States

Amphibian Conservation Alliance site with information and resources related to amphibians and amphibian conservation in the USA.

Exploratorium: Frogs
United States

Includes online exhibits like Frog Tracker that lets you listen to the calls of different North American frogs and Disappearing Act, which shows how frogs use camouflage to avoid predators. The site also includes activities and articles.

Frogs for Kids
United States

See pictures of frogs, find out what kinds of frogs live in Minnesota, hear what their calls sound like, print out pages to color, and learn lots about frogs. From the Minnesota Pollution Control Agency.

Finland

Guide to identify, understand, and appreciate the state's tailless amphibian species.