Male Platy Gonopodium in a circle Source: Image on Wikimedia Commons License: Public domain Author: Loelo The mating organ of the male of most livebearing toothcarps is called the gonopodium. With the onset of sexual maturity, the anal fin of…
(RomoloTavani/iStock) Drinking is not quite the term, as they drink virtually no liquid. The small amount that enters through the mouth goes to the gills, respiratory organs where water exchanges with the environment also take place. In freshwater fish, liquid…
Which basic test methods are available for aquaristics ©Tatyana – stock.adobe.com – ID: 429160510 There are many different ways to control water values in the aquarium. The various methods are presented here as well as the measured values to be…
Magnetic hypersensitivity TdF suggested Eduardo Rodrigues illustrates Flavio Ba edition Felipe van Deursen It is a condition where people are said to be affected by magnetic fields or sources of electricity. When they are close to cell phones, Wi-Fi networks…
Data sheet Indian giant mantis German name: Indian giant mantis Scientific name: Hierodula membranacea Origin: South-Southwest Asia Body length: 70mm – 100mm age expectation: 7-15 months Behave Lining: carnivorous Behave: aggressive Number: single keeping Difficulty level: Beginner H. Zell, Hierodula…
Only two men have ever accelerated to the limit of 43.9 km The first was the American Maurice Greene, sustaining the maximum speed for 10 meters, in 1999, in a race of 100 meters disputed in Rome. At the 2008…
How does algae grow on stones? Stones are simply part of the aquarium. Whether they form the substrate, are used for decoration or equipped with plants. They are often a great eye-catcher and offer the residents many hiding places. Algae…
– (Lauro Henriques Jr./) 1) When a bone breaks, the blood vessels inside it rupture, causing bleeding and the formation of a clot. The site becomes inflamed, but within 24 hours, the ends of the ruptured vessels are sealed, stopping…
Data sheet mini sharks German name: mini sharks Scientific name: Sciades seemannic Origin: Coastal waters from southern California to Colombia Size: 40 cm and larger Aquarium Length: from 300 cm edge length Contents: from 1200 liters content water values Temperature:…
Eunuchs were castrated men, who had their penis and testicles (or just the testicles) taken off. The first records of men without bilau are from the 14th century BC – and, by all indications, the practice survived until the middle…