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Detergents which contain bleach or enzymes (protein-degrading enzymes) are unsuitable, as they damage the hair structure. In the case of hydrophilic textiles, such as textiles made of wool, water contact can lead to thread shortening and thus to shrinkage of the textile due to swelling and the shrinkage that follows during drying.
A guard llama protecting a flock of sheep. A guard llama is a llama that is used in farming to protect sheep, goats, hens or other livestock from canids such as coyotes, dingos, dogs, foxes and other predators. [1] [2] In the past, a single gelded (castrated) male was recommended. In more recent years, it has been discovered that single, unbred ...
Vicuñas are relatives of the llama, and are now believed to be the wild ancestor of domesticated alpacas, which are raised for their coats. Vicuñas produce small amounts of extremely fine wool, which is very expensive because the animal can only be shorn every three years and has to be caught from the wild. When knitted together, the product ...
Armour, although all used for the sole intent to ward off attackers, can be split into defensive and offensive armour. Examples of offensive armour are horns, hooves, antlers, claws, beaks, clubs and pincers, as developed in some mammals, birds, reptiles (including dinosaurs, such as the dromaeosaurid claw and the ceratopsian horn) and arthropods.
Natural predators of the guanaco include pumas and the culpeo or Andean fox. [6] Fox predation was unknown until 2007 when predators began to be observed in the Karukinka Reserve in Tierra del Fuego. Scientists attribute this to the unfavourable climatic conditions on the island, which are causing food to become scarce, weakening the animals.
An aerial view of utility vehicles parked near beachfront homes destroyed in the Palisades Fire as wildfires cause damage and loss through the L.A. region on Jan. 13, 2025 in Malibu, California.
Viburnum lesquereuxii leaf with insect damage; Dakota Sandstone (Cretaceous) of Ellsworth County, Kansas. Scale bar is 10 mm. Knowledge of herbivory in geological time comes from three sources: fossilized plants, which may preserve evidence of defense (such as spines) or herbivory-related damage; the observation of plant debris in fossilised animal feces; and the structure of herbivore mouthparts.
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