Facts about Desert Spadefoot
- 09
Habitat loss from urban development and agriculture has eliminated approximately 90 percent of historic desert spadefoot breeding sites across California and Arizona since the 1950s.
- 08
A desert spadefoot's skin secretes toxic alkaloid compounds that serve as a chemical defense against predators, with some populations producing particularly potent defensive secretions.
- 07
Newly metamorphosed desert spadefoot toadlets measure only 6-8 millimeters in length, making them among the smallest terrestrial vertebrates in North American deserts.
- 06
Desert spadefoot toads can survive temperatures exceeding 104 degrees Fahrenheit by remaining dormant underground, where soil provides natural insulation from lethal surface heat.
- 05
Across the southwestern United States, desert spadefoot toads exhibit highly synchronized breeding triggered by specific rainfall patterns that can activate thousands of individuals simultaneously within a single night.
- 04
Spadefoot toads possess specialized metatarsal tubercles on their hind feet that function as digging tools, allowing them to burrow backward into soil at depths exceeding two feet.
- 03
The desert spadefoot's tadpoles can complete their entire aquatic development in as little as 8 days, the fastest metamorphosis of any North American frog species.
- 02
In breeding season, male desert spadefoots produce loud calls reaching up to 90 decibels to attract females during brief desert rainstorms.
- 01
Burrowing spadefoots can estivate underground for up to 9 months during drought periods, surviving on stored fat reserves until rainfall triggers emergence.