Eine kleine Muschel aus dem Schwarzen Meer sorgt an der Mosel für große Probleme. Denn sie bildet Kolonien auf Schiffen und an Schleusen.
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Quagga - 10 things to know with detail
The quagga was a subspecies of the plains zebra that was native to South Africa. It had a distinctive appearance with stripes only on its head and neck, while the rest of its body was a reddish-brown color.
Quaggas were once abundant in the Cape region of South Africa, but they were heavily hunted by European settlers for their meat and skins. The last known quagga died in captivity in 1883, and the subspecies was declared extinct in the wild shortly thereafter.
The quagga is considered a symbol of human-caused extinction and serves as a stark reminder of the impact of overhunting and habitat destruction on species around the world.
In recent years, there have been efforts to revive the quagga through selective breeding of plains zebras that exhibit quagga-like traits. These breeding programs aim to reintroduce quagga-like animals back into their natural habitat in South Africa.
Quaggas were grazers that fed on grasses and other vegetation in the open plains of South Africa. They lived in herds and were known for their social behavior and distinct vocalizations.
The extinction of the quagga had a significant impact on the ecosystem of the Cape region, as they played a key role in the grassland ecosystem by grazing on vegetation and providing food for predators.
The quagga was named by Dutch settlers in South Africa, who derived the name from the Khoikhoi word for zebra, which is "kwagga."
Quaggas were smaller than other subspecies of zebras, with males typically weighing around 250-300 kg and females weighing slightly less.
The quagga's distinctive appearance made it a popular subject for early naturalists and artists, who often depicted the animal in paintings and drawings.
The story of the quagga serves as a cautionary tale about the importance of conservation and preserving biodiversity in order to prevent the loss of unique and irreplaceable species. It highlights the need for responsible stewardship of the natural world to prevent future extinctions.