Is rainwater drinkable?
It depends. “In a big city, rain has a lot of contaminants. In the field and in the forests it is cleaner”, says chemist Adalgiza Fornaro, from USP. But there is no pure rain, composed only of water, anywhere in…
▷ Emerald Fighting Fish – Betta smaragdina in the aquarium
Data sheet emerald fighting fish German name: Emerald Fighting Fish Scientific name: Betta emeraldina Origin: Asia Size: Up to 7cm Aquarium Length: Length from 60 cm width Contents: from 54 liters water values Temperature: 26°-28° C pH: 6.0 – 7.9…
What is the strongest animal on the planet?
Before deciding which is the most powerful animal in the world, it is necessary to establish a comparative criterion between the main competitors. We, from , chose to award the trophy to the animal that managed to lift the heaviest…
▷ spawning box – spawning box | All information and differences
Young guppies in a net spawning box Photo: Moritz Hertel Spawning boxes or spawning boxes are not called spawning boxes because they are only intended for spawn and not for young. Spawning box is rather the abbreviation for spawning box.…
How did the custom of knocking on wood to ward off bad luck come about?
»> The original version consisted of hitting the trunk of a tree and its most likely origin may lie in the fact that lightning often falls on trees. Ancient peoples – from the Egyptians to the Indians of the American…
▷ Lily Leaf Beetle | All information and details
Data sheet lily leaf beetle Latin name: Galerucella nymphaeae (Linnaeus, 1758) Distribution: Europe and North America Size (in cm: 5.2 to 6.5mm age expectation: 1 year behavior/stocking Occurrence in the pond: pest on water lilies Dangerous? Harmless to humans Andreas…
Is it true that frog urine can blind a person?
No. Although frogs do urinate as a self-defense measure, the liquid itself does not contain any toxic substance. The real venom is released by the granular glands present in its skin. It is important to know, however, that the animal…
▷ Dragonflies | All information and details
Data sheet dragonflies Latin name: Odonata Origin: worldwide Size (in cm: up to 20 centimeters wingspan age expectation: Up to five years as a larvae, two to three months as a dragonfly behavior/stocking Location at the pond: The larvae live…
16 musicians who are part of Clube dos 27
Everyone knows the myth: 27 years old would be a fatal age for music stars. It is true that it has little substance: Dianna Kenny, professor of psychology at the University of Sydney, Australia, found that, in fact, the age…
▷ Dytiscus Beetle | All information and details
Data sheet yellow-striped beetle Latin name: Dytiscus marginalis Trade name: Yellow smut beetle or common yellow smut Distribution: Europe, North Asia, North America Origin: unknown Size (in cm: 3.0 – 3.5 cm long and 1.5 – 1.8 cm wide age…