In early September 2019, dense crude oil began to wash the beaches of Brazil's tropical coast. Four months after the first report, the oil has already been found along >3000 km of the Brazilian coastline on >980 beaches and was recently observed along the Amazon coast, making this oil spill the most extensive and severe environmental disaster ever recorded in Brazilian history, in the South Atlantic basin, and ...
Cnidaria is a marine invertebrates group of great morphological diversity, life cycles, ecology and development. The five classes within the group, Hydrozoa, Anthozoa, Cubozoa, Scyphozoa and Staurozoa, are united by the presence of structures called cnida. The Anthozoa class is composed by two large groups, Hexacorallia and Octocorallia. Octocorallia are morphologically well-defined invertebrates, with the vast...