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European storm petrel

European storm petrel.
The European storm petrel (Hydrobates pelagicus) is a small, square-tailed seabird with a fluttering flight. It is black except for a white rump and a white band under its wings. Most birds breed on islands off western Europe, with a separate subspecies occurring in the Mediterranean. The storm petrel lays a single white egg in a burrow. The adults share incubation and feeding the chick. This bird is oceanic outside the breeding season, wintering off the western coasts of Africa. It feeds on small fish, and can find oily edible items by smell. The chick is fed with an oily liquid regurgitated by the adults. Silent at sea, the storm petrel has a chattering call given during courtship, and the male has a purring song. The storm petrel cannot survive where rats or cats have been introduced, and it is killed by large birds such as gulls. It is classified by the IUCN as being of least concern. Folklore claiming that the bird can foretell or cause bad weather has led to its use as a symbol by some revolutionary groups.

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Portrait of Mariana of Austria

Portrait of Mariana of Austria.
Portrait of Mariana of Austria is a 1652 or 1653 oil-on-canvas painting by Diego Velázquez, the leading artist of the Spanish Golden Age. Its subject, Dona Mariana (known as Maria Anna), was the daughter of Emperor Ferdinand III and Maria Anna of Spain, and was nineteen years old when the painting was completed. Although vivacious and fun-loving in life, she is given an unhappy expression in Velázquez's portrait. The painting is bathed in harmonious shades of black and red, and her face is heavily made up. Her right hand rests on the back of a chair, and she holds a lace handkerchief in her left hand. Her bodice is decorated with jewellery, including a gold necklace, bracelets and a large gold brooch. The clock placed on the scarlet drapery behind her indicates her status. Three full-length versions of the portrait survive, as well as a number of half-length variants. The version in the Museo del Prado (detail pictured) is known to be the original and is dated on the basis of a matching description of a canvas sent to Ferdinand in Vienna in December 1651.

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Cetiosauriscus

Cetiosauriscus.
Cetiosauriscus was a sauropod dinosaur that lived between 166 and 164 million years ago, during the Middle Jurassic. It was a herbivore with a moderately long tail and long forelimbs, compared to other sauropods. It has been estimated at about 15 metres (49 ft) long and between 4 and 10 tonnes (3.9 and 9.8 long tons; 4.4 and 11.0 short tons) in weight. Its only known fossil includes a hindlimb and most of the rear half of a skeleton. Found in Cambridgeshire, England, in the 1890s, it was described by Arthur Smith Woodward in 1905 as a new specimen of the species Cetiosaurus leedsi, which was moved to the new genus Cetiosauriscus in 1927 by Friedrich von Huene. In 1980, Alan Charig proposed the current name Cetiosauriscus stewarti. The fossil was found in the marine deposits of the Oxford Clay Formation alongside many invertebrate groups, marine ichthyosaurs, plesiosaurs and crocodylians, a single pterosaur, and various dinosaurs, including an ankylosaur, stegosaurs, and an ornithopod.

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