The northern gannet (Morus bassanus) is a seabird, the largest species of the gannet family, Sulidae. It is native to the coasts of the Atlantic Ocean, breeding in Western Europe and northeastern North America. It is the largest seabird in the northern Atlantic. The sexes are similar in appearance. Nesting takes place in colonies on both sides of the North Atlantic. Its breeding range has extended northward and eastward, with colonies being established on Russia's Kola Peninsula in 1995 and Bear Island (the southernmost island of Svalbard) in 2011. Colonies are mostly located on offshore islands with cliffs, from which birds can more easily launch into the air. The northern gannet undertakes seasonal migrations and catches fish (which are the mainstay of its diet) by making high-speed dives into the sea. It faces few other natural or man-made threats. Because the northern gannet is both a conspicuous and a common bird, it is referred to in several ancient myths and legends. ( Full article... )
January 11 : Prithvi Jayanti in Nepal
An effusive eruption is a type of volcanic eruption in which lava steadily flows out of a volcano onto the ground. It is one of two major groupings of eruptions, the other being explosive. Effusive eruptions form lava flows and lava domes, each of which vary in shape, length, and width. Deep in the crust, gases are dissolved into the magma because of high pressures but, upon ascent and eruption, pressure drops rapidly, and these gases begin to exsolve out of the melt. A volcanic eruption is effusive when the erupting magma is volatile-poor, which suppresses fragmentation, creating oozing magma that spills out of the volcanic vent and out into the surrounding area. Effusive eruptions are most common in basaltic magma, but they also occur in intermediate and felsic magma, and occasionally in silicic magma as well. This video shows lava agitating and bubbling in an effusive eruption of Litli-Hrútur, near the volcano Fagradalsfjall in Iceland, in 2023. Video credit: Giles Laurent Recently featured: |