Cuyaba dwarf frog
Physalaemus nattereri (common name: Cuyaba dwarf frog) is a frog native to central and southeastern Brazil and eastern Bolivia and Paraguay.
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TerrestrialTerrestrial animals are animals that live predominantly or entirely on land (e.g., cats, ants, snails), as compared with aquatic animals, which liv...
Oviparous animals are female animals that lay their eggs, with little or no other embryonic development within the mother. This is the reproductive...
Jumping (saltation) can be distinguished from running, galloping, and other gaits where the entire body is temporarily airborne by the relatively l...
A fossorial animal is one adapted to digging which lives primarily but not solely, underground. Some examples are badgers, naked mole-rats, clams, ...
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starts withIt has two "false eyes" on its rear. The 3–4 cm frog lifts its rear end when threatened, startling predators. If a predator does not get fooled by the eyespots, and decides to move closer, the frog can produce an unpleasant secretion that comes from glands located in the eyespots. Similar display is known from Physalaemus deimaticus.
A study in Bodoquena (in the Mato Grosso do Sul state of Brazil) found Physalaemus nattereri to be an explosive breeder, with most of the reproductive activity occurring within a few days after heavy rainfall. Males formed choruses to attract females but they could also actively search for females. Egg clutches were deposited in the margins of temporary ponds. Several pairs may use the same foam nest. Mean clutch size was about 3800 eggs. Females were larger (mean snout–vent length 51 mm (2.0 in), range 43–56 mm; mean body mass 19.3 g) than males (47 mm (1.9 in), range 43–55 mm; 11.4 g). Ovaries made about 22% of female body mass; fecundity increased with the female body size.
