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Dromia personata is a gonochoric species. [8] Courtship prior to copulation is commonly practiced through visual, olfactory, or tactile means. [8] Sperm can only be transferred directly from the male's gonopod into the ovigerous female after a molting period, when her exoskeleton has not hardened yet. [9]
Living specimen of Megathura crenulata with mantle extended over much of its shell.. Megathura crenulata is a northeastern Pacific Ocean species of limpet in the family Fissurellidae [1] known commonly as the great keyhole limpet [2] or giant keyhole limpet. [3]
Holothurians can be found throughout the world in marine benthic environments, but are most diverse in the shallow water of the Indo-West Pacific, where C. robustus is found. DNA evidence strongly supports monophyly of all Holothuroidea: That is, all species previously identified as belonging to the class are indeed descended from a common ...
Marine biology is the scientific study of the biology of marine life, organisms that inhabit the sea. Given that in biology many phyla , families and genera have some species that live in the sea and others that live on land, marine biology classifies species based on the environment rather than on taxonomy .
Julie Huber is a Senior Scientist in the Marine Chemistry and Geochemistry department at Woods Hole Oceanographic Institution.She previously was an associate professor of ecology and evolutionary biology at Brown University, an associate scientist at the Marine Biological Laboratory in Woods Hole, Massachusetts, and the associate director of the MBL's Josephine Bay Paul Center for Comparative ...
Sea anemones (/ ə ˈ n ɛ m. ə. n i / ə-NEM-ə-nee) are a group of predatory marine invertebrates constituting the order Actiniaria. Because of their colourful appearance, they are named after the Anemone, a terrestrial flowering plant. Sea anemones are classified in the phylum Cnidaria, class Anthozoa, subclass Hexacorallia.
They utilize similar resources to those of other upper trophic-level marine predators, such as seabirds, marine mammals, and sharks. The flattened body shape, ventral eyes and well developed spiracles of the skate allows them to live benthically, buried in the sediment or using a longitudinal undulation of the pectoral fins known as Rajiform ...
Species of the infraorder Cetacea A phylogenetic tree showing the relationships among cetacean families. [1]The evolution of cetaceans is thought to have begun in the Indian subcontinent from even-toed ungulates (Artiodactyla) 50 million years ago (mya) and to have proceeded over a period of at least 15 million years. [2]
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