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A dragonfly is a flying insect belonging to the infraorder Anisoptera below the order Odonata. About 3,000 extant species of dragonflies are known. Most are tropical, with fewer species in temperate regions. Loss of wetland habitat threatens dragonfly populations around the world. Adult dragonflies are characterised by a pair of large ...
Strongylocentrotus purpuratus is a species of sea urchin in the family Strongylocentrotidae commonly known as the purple sea urchin. It lives along the eastern edge of the Pacific Ocean extending from Ensenada, Mexico, to British Columbia, Canada. [1] This sea urchin species is deep purple in color, and lives in lower inter-tidal and nearshore ...
They took a closer look at the insects and realized they’d discovered a new species: Phloeosinus corneyanus, or the Corneyanus bark beetle. Corneyanus bark beetles have a “stout” and ...
A tunicate is an exclusively marine invertebrate animal, a member of the subphylum Tunicata ( / ˌtjuːnɪˈkeɪtə / TEW-nih-KAY-tə ). This grouping is part of the Chordata, a phylum which includes all animals with dorsal nerve cords and notochords (including vertebrates ). The subphylum was at one time called Urochordata, and the term ...
Synonyms. Simia sphinx Linnaeus, 1758. The mandrill ( Mandrillus sphinx) is a large Old World monkey native to west central Africa. It is one of the most colorful mammals in the world, with red and blue skin on its face and posterior. The species is sexually dimorphic, as males have a larger body, longer canine teeth and brighter coloring.
Most species have an abdominal, tail-like appendage known as a furcula (or furca). It is located on the fourth abdominal segment of collembolans and is folded beneath the body, held under tension by a small structure called the retinaculum (or tenaculum). When released, it snaps against the substrate, flinging the springtail into the air and ...
The underside of the gumboot chiton, Cryptochiton stelleri, showing the foot in the center, surrounded by the gills and mantle: The mouth is visible to the left in this image. The mouth is located on the underside of the animal, and contains a tongue-like structure called a radula, which has numerous rows of 17
Limenitis arthemis, the red-spotted purple or white admiral, is a North American butterfly species in the cosmopolitan genus Limenitis. It has been studied for its evolution of mimicry , and for the several stable hybrid wing patterns within this nominal species ; it is one of the most dramatic examples of hybridization between non-mimetic and ...