Ethan Walker 
Frogs are important because they perform several jobs at once. Adult frogs hunt insects and other small animals, while eggs, tadpoles, juveniles, and adults feed a wide range of predators. Many tadpoles graze on algae, scrape biofilms, or process decaying material in freshwater. When young frogs leave the water after metamorphosis, they also move energy … Read more
The simplest difference between frogs and toads is that a toad is a type of frog, not a completely separate kind of amphibian. Both belong to the order Anura, the group of tailless adult amphibians. Animals commonly called toads often have stockier bodies, shorter hind legs, bumpier skin, and a more land-based lifestyle. Animals commonly … Read more
Amphibians are vertebrates whose lives are closely shaped by water, moisture, and temperature. The group includes frogs, toads, salamanders, newts, and caecilians. Many begin life in water and later use land, but that familiar pattern is only one version of amphibian life. Some species skip a free-swimming larval stage, some remain aquatic as adults, and … Read more
Animal life cycles describe how animals develop, reproduce, and give rise to the next generation. A life cycle may begin with a fertilized egg, an embryo developing inside a parent, or an asexually produced young animal. It then continues through birth or hatching, juvenile growth, maturity, reproduction, aging, and death. The sequence sounds simple, but … Read more
Why animals abandon their young is more complicated than a parent simply deciding not to care. A young animal found alone may still be receiving normal care from a parent that feeds nearby, avoids drawing predators to the hiding place, or returns only when people have left. In other cases, care may decrease or stop … Read more
Marsupials are mammals best known for raising extremely undeveloped newborns while they remain attached to a teat, often inside a pouch. Kangaroos and koalas are the familiar examples, but the group also includes wombats, wallabies, bandicoots, bilbies, possums, opossums, gliders, quolls, and the Tasmanian devil. They range from tiny insect-eaters to large grazing kangaroos and … Read more
Some animals form partnerships that last for years, and a few pairs remain together until one partner dies. Albatrosses may reunite at the same breeding colony after months apart at sea. Wolves often live in family groups centered on a breeding pair. Beavers may share a territory and lodge across multiple breeding seasons. These relationships … Read more
Birds are famous for nest building, but they are far from the only animals that make protected places for eggs, young, rest, or social life. Gorillas bend branches into sleeping platforms. Crocodilians gather vegetation into mounds. Some frogs whip mucus into foam, some fish arrange plants or stones, and social insects excavate or construct chambers … Read more
Many animals carry their babies, but they do not all do it in the same way. A gorilla infant may cling to its mother’s belly, an opossum youngster may ride on her back, an alligator may lift hatchlings in her mouth, and a male seahorse may protect developing embryos inside a brood pouch. Spiders, scorpions, … Read more
Animal babies survive in the wild through a combination of built-in traits, learned behavior, carefully timed development, suitable habitat, and, in many species, help from adults. Some newborns remain hidden and nearly motionless. Others can stand, swim, or follow a parent soon after birth or hatching. Many rely on camouflage, group protection, rapid growth, warning … Read more
