Animal Groups and Number of Species
Here are 10 major animal groups with an approximate number of known species in each:
- Mammals – ~6,500 species
- Birds – ~11,000 species
- Reptiles – ~11,500 species
- Amphibians – ~8,000 species
- Fish – ~34,000 species
- Insects – ~1,000,000+ species
- Arachnids (spiders, scorpions, etc.) – ~100,000 species
- Mollusks (snails, clams, squids) – ~85,000 species
Where Do Turkey Vultures Live? Habitat, Range and Lifespan
July 30, 2026
Turkey Vultures live throughout most of North, Central, and South America. Their range extends from southern Canada through the United States, Mexico, and Central America
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What Do Turkey Vultures Eat? 10 Common Foods
July 29, 2026
Turkey Vultures mainly eat carrion, meaning the bodies of animals that are already dead. They commonly search for roadkill, dead mammals, birds, reptiles, fish, and
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Turkey Vulture: Size, Wingspan, Diet, Habitat, and Facts
July 28, 2026
The Turkey Vulture is a large scavenging bird recognized by its bald red head, dark plumage, broad wings, and effortless soaring flight. Often seen circling
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Great Tit Bird: Identification, Diet, Habitat and Facts
July 27, 2026
The great tit is a colorful and intelligent songbird commonly found across Europe, parts of North Africa, and much of Asia. Its black head, white
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Coal Tit Bird: Identification, Habitat, Diet and Nesting
July 27, 2026
The coal tit is a tiny, energetic woodland bird recognized by its black cap, white cheeks, gray back, and distinctive white patch on the back
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Black-Crested Titmouse: Id, Habitat, Diet, Call and Facts
July 26, 2026
The black-crested titmouse is a lively songbird recognized by its pointed black crest, gray body, pale underside, and rusty-colored sides. It is especially associated with
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White-Breasted Nuthatch: Identification, Diet, Call and Facts
July 26, 2026
The white-breasted nuthatch is a compact woodland bird known for its white face, blue-gray back, and unusual ability to climb headfirst down tree trunks. Common
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Red-Breasted Nuthatch: Identification, Call and Range
July 25, 2026
The Red-breasted Nuthatch (Sitta canadensis) is a small, energetic songbird recognized by its blue-gray back, rusty-orange underparts, black eye stripe, and white eyebrow. It is
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Female Downy Woodpecker: Identification and Male Comparison
July 25, 2026
The female Downy Woodpecker is a small black-and-white bird commonly seen in woodlands, parks, orchards, and suburban yards across North America. She closely resembles the
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What Do Downy Woodpeckers Eat? 15 Favorite Foods
July 23, 2026
Downy Woodpeckers eat insects, larvae, seeds, nuts, berries, tree sap, and other energy-rich foods. Their diet changes throughout the year depending on what is available.
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