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A hermaphrodite (/hərˈmæfrəˌdaɪt/) is a sexually reproducing organism that produces both male and female gametes. Animal species in which individuals are...

The wolverine (/ˈwʊlvəriːn/ WUUL-və-reen, US also /ˌwʊlvəˈriːn/ WUUL-və-REEN; Gulo gulo), also called the carcajou or quickhatch (from East Cree, kwiihkwahaacheew)...

Intersex people are individuals born with any of several sex characteristics including chromosome patterns, gonads, or genitals that, according to the...

A carbohydrate (/ˌkɑːrboʊˈhaɪdreɪt/) is a biomolecule consisting of carbon (C), hydrogen (H) and oxygen (O) atoms, usually with a hydrogen–oxygen atom...

Lobsters are malacostracans of the family Nephropidae (synonym Homaridae). They have long bodies with muscular tails and live in crevices or burrows on...

Melatonin, an indoleamine, is a natural compound produced by various organisms, including bacteria and eukaryotes. Its discovery in 1958 by Aaron B. Lerner...

The largemouth bass (Micropterus nigricans) is a carnivorous freshwater ray-finned fish in the Centrarchidae (sunfish) family, native to the eastern and...

Montane ecosystems are found on the slopes of mountains. The alpine climate in these regions strongly affects the ecosystem because temperatures fall as...

The Y chromosome is one of two sex chromosomes in therian mammals and other organisms. Along with the X chromosome, it is part of the XY sex-determination...

Agave (/əˈɡɑːvi/; also UK: /əˈɡeɪvi/; Anglo-Hispanic, also US: /əˈɡɑːveɪ/) is a genus of monocots native to the arid regions of the Americas. The genus...

A vulture is a bird of prey that scavenges on carrion. There are 23 extant species of vulture (including condors). Old World vultures include 16 living...

A nutrient is a substance used by an organism to survive, grow and reproduce. The requirement for dietary nutrient intake applies to animals, plants, fungi...

Red algae, or Rhodophyta (/roʊˈdɒfɪtə/, /ˌroʊdəˈfaɪtə/; from Ancient Greek ῥόδον (rhódon) 'rose', and φυτόν (phutón) 'plant'), make up one of the oldest...

The hammerhead sharks are a group of sharks that form the family Sphyrnidae, named for the unusual and distinctive form of their heads, which are flattened...

Theobroma cacao (cacao tree or cocoa tree) is a small (6–12 m (20–39 ft) tall) evergreen tree in the family Malvaceae. Its seeds, cocoa beans, are used...

A dominatrix (/ˌdɒmɪˈneɪtrɪks/ DOM-in-AY-triks; pl. dominatrixes or dominatrices /ˌdɒmɪˈneɪtrɪsiːz, ˌdɒmɪnəˈtraɪsiːz/ DOM-in-AY-triss-eez, DOM-in-ə-TRY-seez)...

The Indian Spitz is a spitz dog breed belonging to the utility group.[citation needed] The Indian Spitz was one of the most popular dogs in India in the...

Fur is a thick growth of hair that covers the skin of almost all mammals. It consists of a combination of oily guard hair on top and thick underfur beneath...

Hydrozoa (hydrozoans; from Ancient Greek ὕδωρ (húdōr) 'water', and ζῷον (zôion) 'animal') is a taxonomic class of individually very small, predatory animals...

Stylommatophora is an order of air-breathing land snails and slugs, terrestrial pulmonate gastropod molluscs. This taxon includes most land snails and...