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Short answer Excretion of blood and urine may prevent overheating by reducing body temperature through evaporative coolong (akin to perspiration). Excretion of blood urine also concentrates the ingested blood. Background Female Anopheles mosquitoes seek blood for nutrients necessary to egg production. The cold-blooded insects may excrete some freshly ...


As @Ilan wrote, this is a Cantharidae but most probably Cantharis fusca, which is very common species in northern Europe. Cantharis rustica is similar but has reddish femurs and the black spot is more centered on the pronotum. It is not C. lecontei, which is a North American species. If you go looking at flowers of Anthriscus sylvestris for an hour or two, ...


Actually, the animal is not a caterpillar but larva. The species is Abia lonicerae Sawfly, discovered by Linnaeus 1758. (Another picture)


The beetle resembles Soldier beetle, especially Cantharis lecontei Soldier Beetles (Cantharidae) » Cantharinae » Cantharini » Cantharis


That jumping spider is a Jumping Spider! (That is, family Salticidae, commonly called Jumping Spiders). There's a lot of diversity in the family, but your pictures look similar to the Zebra Jumping Spider.


Long story short, use sequence information if you can. The long story long: Sequence information and the trees generated from them are strictly more reliable than morphological characters. For instance: sharks are pretty much the same shape they were millions of years ago, but they've been accumulating genetic differences 'invisibly' that allows us to group ...


With arbitrarily broad meaning of "processed", yes. If absolutely nothing else, elemental purification and inorganic synthesis of something chemically resembling meat in nutrition is possible. Prohibitively expensive and stupid, yes, but possible. So then the question becomes exactly how much processing you need to do. Without clear bounds on that question ...


Short answer One way to distinguish between the olfactory and gustatory system in fish is by their anatomical differences. For example, olfactory receptors are clustered in the nasal region, while gustatory receptors are scattered in the head region and beyond. In turn, olfactory information is sent via a single cranial nerve to the brain, while the ...


This animal is moth larva. The images presented are blurry, but if there are no any dots on the larva my first suggestion is: pantry/Indian meal moth larvae - "They are a common grain-feeding pest found around the world, feeding on cereals and similar products." (picture source)


Not all animals are equally predisposed for domestication. To be easily domesticated, animal should have: Flexible diet - and not compete with humans for food Reasonably fast growth rate Ability to be bred in captivity Pleasant disposition Temperament which makes it unlikely to panic Modifiable social hierarchy Wikipedia link above has plenty of ...

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