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A coral reef is an underwater ecosystem characterized by reef-building corals. Reefs are formed of colonies of coral polyps held together by calcium carbonate. [1] Most coral reefs are built from stony corals, whose polyps cluster in groups. Coral belongs to the class Anthozoa in the animal phylum Cnidaria, which includes sea anemones and ...
Great Barrier Reef. / 18.283°S 147.700°E / -18.283; 147.700. The Great Barrier Reef is the world's largest coral reef system, [1] [2] composed of over 2,900 individual reefs [3] and 900 islands stretching for over 2,300 kilometres (1,400 mi) over an area of approximately 344,400 square kilometres (133,000 sq mi).
Titanoboa (/ ˌ t aɪ t ə n ə ˈ b oʊ ə /; lit. ' titanic boa ') is an extinct genus of giant boid (the family that includes all boas and anacondas) snake that lived during the middle and late Paleocene.Titanoboa was first discovered in the early 2000s by the Smithsonian Tropical Research Institute who, along with students from the University of Florida, recovered 186 fossils of Titanoboa ...
From today's featured article. Marasmius rotula, the pinwheel mushroom, is a fungus in the family Marasmiaceae. Widespread in the Northern Hemisphere, it was first described scientifically in 1772 by Giovanni Antonio Scopoli. The mushrooms are characterized by thin whitish caps up to 2.0 cm (0.8 in) wide that are sunken in the center and ...
Toucans ( / ˈtuːkæn /, UK: /- kən /) are Neotropical members of the near passerine bird family Ramphastidae. The Ramphastidae are most closely related to the American barbets. They are brightly marked and have large, often colorful bills. The family includes five genera and over 40 different species .
Synonyms. Sus hydrochaeris Linnaeus, 1766. The capybara [a] or greater capybara ( Hydrochoerus hydrochaeris) is a giant cavy rodent native to South America. It is the largest living rodent [2] and a member of the genus Hydrochoerus. The only other extant member is the lesser capybara ( Hydrochoerus isthmius ).
v. t. e. Paleoecology (also spelled palaeoecology) is the study of interactions between organisms and/or interactions between organisms and their environments across geologic timescales. As a discipline, paleoecology interacts with, depends on and informs a variety of fields including paleontology, ecology, climatology and biology .
