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Há 1 dia · Family Felidae – cats. Subfamily Pantherinae. Genus Neofelis – clouded leopards. Genus Panthera – lion, tiger, leopard, jaguar, snow leopard. Subfamily Felinae. Genus Catopuma – Bay cat and Asian golden cat. Genus Pardofelis – marbled cat. Genus Caracal – caracal and African golden cat.
Há 1 dia · Like land mammals, the narwhal's neck vertebrae are jointed, instead of being fused together as in most whales; this allows a great range of neck flexibility. These characteristics—a dorsal ridge and jointed neck vertebrae—are shared by the closely related beluga whale . [8]
Há 1 dia · The school principal, Maria del Carmen Silva, is a former National Ballet of Peru dancer who provides classes to all children regardless of economic background or physical ability. Those who can ...
- 6 min
- Gregory Ward , Souleyman Messalti
Há 1 dia · Aitchison traveled to Kasanka National Park in Zambia to film the world’s largest mammal migration for the BBC’s Mammals programme. His footage provides a rare glimpse of the spectacular annual gathering of fruit bats from across Africa, according to IFL Science.
Há 1 dia · Peregrine falcons have a flicker fusion frequency of 129 Hz (cycles per second), very fast for a bird of its size, and much faster than mammals. A study testing the flight physics of an "ideal falcon" found a theoretical speed limit at 400 km/h (250 mph) for low-altitude flight and 625 km/h (388 mph) for high-altitude flight. [55]
Há 3 horas · The toxicity of ammonia solutions does not usually cause problems for humans and other mammals, as a specific mechanism exists to prevent its build-up in the bloodstream. Ammonia is converted to carbamoyl phosphate by the enzyme carbamoyl phosphate synthetase , and then enters the urea cycle to be either incorporated into amino acids or excreted in the urine. [131]
Há 1 dia · Poland is a parliamentary republic, with its bicameral legislature comprising the Sejm and the Senate. It is a developed market and a high-income economy. Considered a middle power, Poland has the sixth-largest economy in the European Union by GDP (nominal) and the fifth-largest by GDP (PPP).
