Type of animal science: Classification, evolution Fields of study: Anatomy, evolutionary science, paleontology, systematics (taxonomy) Hadrosaurs are a group of bipedal dinosaurs that were the most diverse and widespread large-bodied herbivores of the
Late Cretaceous. The presence of eggs and nests provides evidence for hadrosaur social behavior.
Type of animal science: Classification Fields of study: Anatomy, ornithology Hawks are a diverse group of birds adapted to exploit a wide variety of habitats, prey, and climatic conditions. All
hawks are distinguished by sharp, strongly hooked bills, a fleshy cere, and strong legs with sharp talons. Most are active
and efficient hunters that use their keen vision to target and track suitable prey.
Type of animal science: Anatomy, classification, ecology, reproduction Fields of study:Anatomy, ecology, zoology Herbivores, animals which eat only plants, include insects and other arthropods, fish, birds, and mammals. They keep
plants from overgrowing and are food for carnivores or omnivores.
Type of animal science: Classification Fields of study: Anatomy, wildlife ecology, zoology The Hippopotamidae family has two genera, each with a single species. The two genera differ greatly in size, but both
are characterized by a round tubular body, short stocky legs, broad snout, and a very large mouth.
Type of animal science: Classification Fields of study: Anatomy, wildlife ecology, zoology The Horses and Zebraspotamidae family has two genera, each with a single species. The two genera differ greatly in size, but both
are characterized by a round tubular body, short stocky legs, broad snout, and a very large mouth.
Type of animal science: Classification Fields of study: Anatomy, invertebrate biology, marine biology, systematics (taxonomy) Horseshoe crabs are not crabs at all, being more closely related to spiders and scorpions. They have been around for at
least 400 million years—before dinosaurs walked the earth—and have changed relatively little in that time.
Type of animal science: Anatomy, behavior, classification, physiology, reproduction Fields of study: Ornithology, physiology, population biology, wildlife ecology Hummingbirds are found only in North and South America. Classified in the general order Apodiformes, they have
unique coloration and many of their feathers are iridescent. The rapid beating of their wings, which enables them to
hover, produces a distinctive, recognizable hum.
Type of animal science: Classification, ecology, reproduction Fields of study:Anatomy, ecology, zoology Hyenas are wolflike carnivore-scavengers whose useful ecological functions derive from their diet of carrion and live
animals from termites to antelope.
Type of animal science: Anatomy, classification, reproduction Fields of study:Anatomy, zoology Hyraxes, rabbit-sized, furry mammals, look like rodents but are more closely related to elephants. Their foot pads optimize
traction on rocks and in trees.
Animals World
