Frog of the Week

Darwin’s Frog (Rhinoderma darwinii)

photo by Mono Andes


Common Name: Darwin’s Frog
Scientific Name: Rhinoderma darwinni
Family: Rhinodermatidae
Location: Argentina and Chile
Maximum Size: 1.2 inches or 31 mm

The Darwin’s Frog are named after the father of evolution, Charles Darwin, who described them on his trip on the HMS Beagle. Darwin’s frog are mainly diurnal (active during the day) but males call during the night. Once the female frog lays the eggs, the male guards them until the embryos start to move. Then the male swallows the embryos and puts them in his vocal sac until they undergo metamorphosis, at which point they jump out of its mouth.


The frog is threatened with extinct. The forests were they live are being transformed into plantations. Also, chytrid fungus, a deadly pathogen, is another factor in the decline of the Darwin’s Frog.


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