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A pheromone (from Ancient Greek φέρω (phérō) 'to bear', and hormone) is a secreted or excreted chemical factor that triggers a social response in members...

The anglerfish are fish of the teleost order Lophiiformes (/ˌlɒfiɪˈfɔːrmiːz/). They are bony fish named for their characteristic mode of predation, in...

Promiscuity is the practice of engaging in sexual activity frequently with different partners or being indiscriminate in the choice of sexual partners...

Apoptosis (from Ancient Greek: ἀπόπτωσις, romanized: apóptōsis, lit. 'falling off') is a form of programmed cell death that occurs in multicellular organisms...

Phalacrocoracidae is a family of approximately 40 species of aquatic birds commonly known as cormorants and shags. Several different classifications of...

Monogamy (/məˈnɒɡəmi/ mə-NOG-ə-mee) is a relationship of two individuals in which they form an exclusive intimate partnership. Having only one partner...

Endangered species, as classified by the International Union for Conservation of Nature (IUCN), are species which have been categorized as very likely...

Paraphyly is a taxonomic term describing a grouping that consists of the grouping's last common ancestor and some but not all of its descendant lineages...

Safe sex is sexual activity using methods or contraceptive devices (such as condoms) to reduce the risk of transmitting or acquiring sexually transmitted...

In genetics and bioinformatics, a single-nucleotide polymorphism (SNP /snɪp/; plural SNPs /snɪps/) is a germline substitution of a single nucleotide at...

The Phasianidae are a family of heavy, ground-living birds, which includes pheasants, partridges, junglefowl, chickens, turkeys, Old World quail, and peafowl...

Grouse /ɡraʊs/ are a group of birds from the order Galliformes, in the family Phasianidae. Grouse are presently assigned to the tribe Tetraonini (formerly...

Tsetse (/ˈsiːtsi/ SEET-see, US: /ˈtsiːtsi/ TSEET-see or UK: /ˈtsɛtsə/ TSET-sə) (sometimes spelled tzetze; also known as tik-tik flies) are large, biting...

The gastropod shell is part of the body of a gastropod or snail, a kind of mollusc. The shell is an exoskeleton, which protects from predators, mechanical...

Plant breeding is the science of changing the traits of plants in order to produce desired characteristics. It has been used to improve the quality of...

Konjac (or konjak, English: /ˈkɒnjæk, ˈkɒndʒæk/ KON-yak, KON-jak) and konnyaku are common names of Amorphophallus konjac, a vegetable species native to...

Aegle marmelos, commonly known as bael (or bili or bhel), also Bengal quince, golden apple, Japanese bitter orange, stone apple or wood apple, is a species...

Corvus is a widely distributed genus of passerine birds ranging from medium-sized to large-sized in the family Corvidae. It includes species commonly known...

The subfamily Caprinae, also sometimes referred to as the tribe Caprini, is part of the ruminant family Bovidae, and consists of mostly medium-sized bovids...

In anatomy, the meninges (/məˈnɪndʒiːz/, sg.: meninx (/ˈmiːnɪŋks/ or /ˈmɛnɪŋks/), from Ancient Greek μῆνιγξ (mēninx) 'membrane') are the three membranes...