Portal:Biology/Previous did you knows
From Wikipedia, the free encyclopedia
- ...that the Banksia menziesii (pictured), named after 18th-century physician and naturalist Archibald Menzies, is also known as the Firewood Banksia for its burning properties and abundancy?
- ...that the Coastal Zone Color Scanner provided the first global view of phytoplankton concentrations?
- ...that bay mud is a significant estuarine ecological resource, but went unstudied until humans began building high-rise structures near bays?
- ...that casting is the regurgitation of fur, feathers, and other undigestible material by hawks, to clean and empty their crops?
- ... that coccolithovirus, a giant double-stranded DNA virus, has 472 protein-coding genes, and is the largest known marine virus by genome?
- ...that the Black slug is the only species of slug that when disturbed contracts into a hemispherical shape and starts to rock horizontally to confuse predators?
- ...that Scleroderris canker is a fungal disease among coniferous trees, sometimes spread by imported Christmas trees, that can kill an entire forest within a few years?
- ...that a female Western harvest mouse can potentially give birth to as many as forty to sixty offspring in a single year?
- ...that the Madagascar hissing cockroach expels air from abdominal breathing pores to create a loud hissing sound?
- ...that the red blood cells of a camel have an oval shape to facilitate their flow in a dehydrated state?
- ...that wildebeest calves can walk within minutes of being born, and after a few days can keep up with the rest of the herd?
- ...that hermaphrodite C. elegans worms have exactly 959 cells and that biologists know the developmental fate of each cell?
- ...that Ernst Haeckel coined the word "Ecology" to identify the relationship between plants, animals, and their environment?
- that the Polymerase Chain Reaction (PCR) is a technique that allows researchers to amplify specific regions of DNA for analysis
- the Black Tree Fern is the largest of the tree fern species, endemic to New Zealand?
- natural selection can sometimes lead to disadvantageous traits, as in intragenomic conflict?
- some cichlid fish, crocodiles and frogs keep their eggs or young in their mouths or stomachs?
- Dolly the sheep was named after Dolly Parton, because Dolly the sheep was cloned from a mammary cell?
- the sea otter often keeps a stone tool in its armpit pouch?
- skunks cannot see objects further than three metres away, making them vulnerable to road traffic?
- crustaceans and mollusks have blue, copper based blood?
- woodlice (also known as pill bugs or roly-polys) are not insects but terrestrial crustaceans?
- Rhagoletis pomonella (the apple maggot) was an observed instance of speciation in the wild caused by the introduction of apples to America?
- bombardier beetles create an explosive chemical reaction within their own bodies and use it as a defensive mechanism?
- human chromosome 2 is a result of the fusion of two separate chromosomes, 2p and 2q, from our hominid ancestors?
- the common mullein plant was burnt in France during celebrations on the second Sunday of Lent to protect against evil spirits and demons?
- the epidermis of the mantle, an organ in mollusks, secretes the calcium carbonate that creates their shell?
- Repenomamus may have been the largest mammal in the Cretaceous period and is the only mammal known to have eaten non-avian dinosaurs?
- melasma is a skin hyperpigmentation commonly affecting pregnant women that is caused by the overproduction of melanin?
- Albert Calmette developed "Calmette's Serum", the first antivenom developed against snake venom?
- there are so many species of Murinae (Old World rats and mice) that it is said they are in the process of taking over the world, and humans just came along in the middle of it?
- the Humboldt Museum in Berlin is home to the largest mounted dinosaur in the world, a Brachiosaurus; and the most exquisitely preserved specimen of the earliest known bird, the Archaeopteryx?
- ...that the water bear, in theory, could survive the vacuum of space?