These fig-size croakers stay put aboveground as the water between their cells freezes, and they spend the season in a kind of cryosleep. When spring arrives, most wood frogs awaken from their icy ...

Bombardier beetles eject toxic chemicals at a temperature of 100°C to repel enemies such as frogs, ... reduced the rate of attack on assassin bugs by frogs from 91.3% to 40.0% (Fig. 3).

And frogs can stay in this position for anything from a few hours to several months. Different variations of amplexus. (Image Credit: via @jodirowley, C Minshew, modified from fig in ‘Biology of ...

Although all of the tree frogs (n = 17) attacked the male wasps, 35.3% of the tree frogs rejected the male wasps (Fig. 2; see Video). The male wasps stung or bit the tree frogs while being attacked.

Anuran eggs within body cavities of the fossil frog Gansubatrachus qilianensis (paratype JQ-HX-QW-02) and extant ranid frog. (a) G. qilianensis, enlarged view of left red box in figure 2a, ...