| Great
Basin Spadefoot toads are the only amphibian found on the INL.
The spadefoot toad is gray or olive green
in color. The eyes are very large, golden yellow. They have a bump
between the eyes, giving the head a distinctive shape. Spadefoots
have a bumpy skin but are not quite as "warty" as Western
Toads. The bumps, or tubercles, are small and dark brown or reddish in
colour. There are light-coloured stripes down the sides of
the spadefoot's back, and the skin on the tummy is pale.
The most distinctive feature is the
source of their name: the small, black "spade" on the first
toe of each hind foot. This hardened tissue allows them to dig into
loose soil for shelter.
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