Because it was built on clay and sand, materials that were not very firm to support a building of that size. Designed to house the bell of the cathedral of Pisa, in northern Italy, the tower was begun in 1173:…
Data sheet ramshorn snails German name: ramshorn snails Scientific name: Planorbarius Corneus Origin: Europe Size: up to 4 cm case diameter Aquarium Aquarium: from 50 liters Pond: from 200 liters, for winter storage at least 80 cm deep water values…
illustrates Rodrigo Didier edition Felipe van Deursen It was an architectural complex that, for a thousand years, served as a military fortification, political center and religious sanctuary in Athens. In addition to typically Greek architectural styles, the Doric and Ionian,…
Pterophyllum scalare pair – female right Source: Image on Wikimedia Commons License: CC Attr. SA 3.0 Author: Soulkeeper In the case of adult angelfish, trained observers can identify the sexes during the spawning season. Outside of the spawning season, sex…
Its body was small like that of a seagull and very similar to that of modern birds. There is debate about how many species existed: recent studies suggest there was only one, Pterodactylus antiquus, but there are researchers who argue…
How old do cichlids from Lake Malawi get? On average, cichlids from Lake Malawi live for 4 – 6 years. Depending on the species and gender, the value is of course different. Individual East African cichlids can live for 25…
Pay attention to the map below: You’ve probably already come across such a map, either on the internet or in a school textbook. It is based on the so-called Mercator Projection, created in 1559 by the geographer Gerhard Kremer (better…
Disclaimer | Important NOTE: Note: Please note that this page treats all information without guarantee and has no guarantee of correctness. Furthermore, online information does not replace a visit to the veterinarian. For any questions regarding medication, treatment, illness or…
»> In men, orgasm and ejaculation almost always go together and many people think that’s why the two are exactly the same thing. But they are not! Orgasm is the peak of pleasure that man feels in a sexual relationship.…
What is an aquaterrarium? © Sebastian Cohrs Among the multitude of different pets, more and more creatures that have to be kept in terrariums or aquariums are finding a home with animal lovers. Insects or reptiles are usually kept in…