Mouthbrooder Photo: Philippe Coulon There are ovophilic and larvophilic mouthbrooders. Almost all cichlids from Lake Malawi are mouthbrooders. In the case of Melanochromis johannis, incubation takes e.g. B. 2 to 3 weeks. The female takes care of the brood. The…
»> Have you heard of photons and gluons? Because they are the smallest components of the atom – formed by pure energy, they don’t even have mass. Photons are the particles of light baptized by Einstein, while gluons are called…
Does low lighting help against algae? The influence of light intensity and lighting duration on algae growth is often discussed controversially. A large number of factors work together in the aquarium, all of which must be brought into a suitable…
(/) There are several versions that try to decipher where the game came from, but none of them to date could be confirmed. It is believed, however, that it originated in China, invented by a soldier named Hung Ming, who…
In the summer season, the lawn in the garden needs sufficient moisture. Especially with large areas, care must be taken to ensure that the soil is irrigated. Sprinklers or sprinklers compensate for the loss of liquid in the months from…
Nymphomania, characterized by an excessive sexual appetite, is a psychiatric disorder – there are no biological reasons to explain its origin. According to the International Classification of Diseases (ICD), nymphomania is considered a compulsion, not related to the production of…
Chucholl C., Marble crayfish Procambarus fallax forma virginalis, CC BY-SA 3.0 Important: The trade, breeding and propagation of marble crayfish is prohibited in Germany with a few exceptions, as it is an invasive species. marble crabs, Procambarus fallax forma virginalisgrow…
Yes. I mean: there are colors that, despite being detected by our brain, are not translated by our optical system, and we end up seeing them as white. Colors are formed in our mind from three primary lights: red, green…
In contrast to many other countries in the world, it is not allowed to go fishing in Germany without an official (official) permit. This permission is also “fishing license» or «fishing license» called. © photographer – stock.adobe.com – 27571041 The…
“It depends on the methodology adopted”, explains Márcio Cardoso, an anthropologist from the Federal University of Minas Gerais (UFMG). The cranial structure is formed by 22 bones, eight of which are in the cranial box and 14 in the face.…