Most animals begin life in eggs, protected and constrained by a capsule, shell, or other
barrier. As embryos develop, their needs and abilities change, altering the costs and …

Many species alter the timing of hatching in response to egg or larval predators, pathogens,
or physical risks. This plasticity depends on separation between the onset of hatching …

The leaf or monkey frogs of the hylid subfamily Phyllomedusinae are a unique group of
charismatic anurans. We present a molecular phylogenetic analysis that includes 45 of the …

Eggs often suffer high levels of predation and, compared with older animals, embryos have
few options available for antipredator defence. None the less, hatchlings can escape from …

I examined the role of vibrations in predator-induced early hatching of red-eyed treefrogs,
Agalychnis callidryas. The arboreal eggs of A. callidryas hatch up to 30% early if attacked by …

Prior studies have shown that macrogeographic gradients in temperature associated with
latitude and altitude can lead to countergradient patterns of variation in a number of taxa …

Pathogens can cause substantial mortality of amphibian eggs. If the timing of hatching is
phenotypically plastic, embryos could escape from otherwise lethal infections by hatching …

Environmentally cued plasticity in hatching timing is widespread in animals. As with later life‐
history switch points, plasticity in hatching timing may have carryover effects that affect …

Egg-brooding frogs (Hemiphractidae) are a group of 105 currently recognized Neotropical
species, with a remarkable diversity of developmental modes, from direct development to …

Adaptive plasticity at switch points in complex life cycles (eg, hatching, metamorphosis) is
well known, but the evolutionary history of such plasticity is not. Particularly unclear is how a …