H. L. Stecher. 
BULL FROG (Rana catesbeiana). Length: 8 inches. Range: Eastern United States. 
places them in the sac. The “hairy” frog is not a fiction but a very living 
native of Africa. The lower sides and thighs of the male are covered with 
tiny hairlike tubes resembling gills and serving the same function. 
Frogs have leaped their way into literature via Mark Twain’s story 
The Celebrated Jumping Frog of Calaveras County. Now Calaveras County, 
California, holds yearly jumping events for frogs in commemoration of 
the story. “Zip,” the titleholder in 1938, soared through the air with the 
greatest of ease for a new record of fifteen feet, ten inches. 
One of the most common of Old World frogs is not unreasonably 
known as the common frog. It resides in temperate regions from England 
to Japan, and shows as many variations in markings and color as the num¬ 
ber of countries which it inhabits. The sexes are hardly distinguishable ex¬ 
cept in the breeding season, when the inner fingers of the males’ forelegs 
develop swollen pads and the webs on the hind legs grow considerably 
larger. 
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