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Hace 2 días · Different fish species are adapted to a wide variety of freshwater and marine habitats. Fish species are roughly divided equally between freshwater and marine (oceanic) ecosystems; there are some 15,200 freshwater species and around 14,800 marine species.
Hace 5 días · Bird, any of the more than 10,400 living species unique in having feathers, the major characteristic that distinguishes them from other animals. They are warm-blooded vertebrates more related to reptiles than mammals.
Hace 5 días · Fungus, any of about 144,000 known species of organisms of the kingdom Fungi, including yeasts, mildews, molds, and mushrooms. Fungi are some of the most widely distributed organisms on Earth and are of great environmental and medical importance.
Hace 3 días · Birds are a group of warm-blooded vertebrates constituting the class Aves ( / ˈeɪviːz / ), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton.
Hace 5 días · Polychaetes are multi-segmented worms living in all environments in the world's oceans, present from abyssal depths to shallow estuaries and rocky shores, and even free swimming in open water. They are strictly aquatic annelids, but are the most abundant and diverse group of Phylum Annelida.
Hace 4 días · The Mexican wolf ( Canis lupus baileyi ), also known as the lobo mexicano (or, simply, lobo) [a] is a subspecies of gray wolf ( C. lupus) native to eastern and southeastern Arizona and western and southern New Mexico (in the United States) and fragmented areas of northern Mexico. Historically, the subspecies ranged from eastern Southern ...
Hace 3 días · Most South American insects, spiders, crabs, centipedes, and millipedes are found nowhere else in the world. Thousands of species, especially insects of the tropical rainforest, have yet to be classified.
