Jaguar. The jaguar (/ˈdʒæɡwɑr/ or UK /ˈdʒæɡjuː.ər/), Panthera onca, is a big cat, a feline in the Panthera genus, and is the only Panthera species found in the Americas.
The jaguar is the third-largest feline after the tiger and the lion, and the largest in the Western Hemisphere. The jaguar's present range extends from Southwestern United States and Mexico across much of Central America and south to Paraguay and northern Argentina. Apart from a known and possibly breeding population in Arizona (southeast of Tucson), the cat has largely been extirpated from the United States since the early 20th century. The jaguar is a near threatened species and its numbers are declining.
Threats include loss and fragmentation of habitat. Etymology The first component of its taxonomic designation, Panthera, is Latin, from the Greek word for leopard, πάνθηρ, the type species for the genus. Taxonomy and evolution Asian ancestry While jaguars now live only in the Americas, they are descended from Old World cats. Snake. Most species are nonvenomous and those that have venom use it primarily to kill and subdue prey rather than for self-defense.
Some possess venom potent enough to cause painful injury or death to humans. Nonvenomous snakes either swallow prey alive or kill by constriction. Etymology The English word snake comes from Old English snaca, itself from Proto-Germanic *snak-an- (cf. Germanic Schnake "ring snake", Swedish snok "grass snake"), from Proto-Indo-European root *(s)nēg-o- "to crawl", "to creep", which also gave sneak as well as Sanskrit nāgá "snake".[6] The word ousted adder, as adder went on to narrow in meaning, though in Old English næddre was the general word for snake.[7] The other term, serpent, is from French, ultimately from Indo-European *serp- (to creep),[8] which also gave Ancient Greek hérpō (ἕρπω) "I crawl".
Evolution. Bird of prey. Birds of prey, also known as raptors, hunt and feed on other animals.
The term "raptor" is derived from the Latin word rapere (meaning to seize or take by force).[1] These birds are characterized by keen vision that allows them to detect prey during flight and powerful talons and beaks. In most cases, the females are larger than the males. Because of their predatory nature, they face distinct conservation concerns. Definition[edit] Classification by ancestry[edit] Strigidae: (typical owls)Tytonidae: (barn and bay owls). The observation that otherwise unrelated bird groups may perform similar ecological roles and bear striking morphological similarities to one another is explained by the concept of convergent evolution. Common names[edit] The common names for various birds of prey are based on structure, but many of the traditional names do not reflect the evolutionary relationships between the groups. Variations in shape and size See also[edit] References[edit] Jump up ^ Brown, Leslie (1997). How to build a survival shelter. Being a “survivor” has captured the imagination of millions of TV watchers.
But a survivor is much more than a TV fantasy. A survivor is someone prepared to live—and live as healthfully as possible—when life far from home doesn’t go exactly as planned. Being prepared to survive in the outdoors starts with knowing what to be prepared for. You can live days without water and weeks without food. People who don’t survive in the outdoors most often die from losing their body heat, not necessarily from starvation or dehydration. Here are the keys to taking shelter in the wilderness: Your first line of defense against the elements is the “shelter” you choose to wear. Choosing the best place to build a survival shelter is important. If it’s almost dark and you can hurriedly collect dry debris (leaves, pine needles, bark) from the forest floor, make a pile two or three feet high and longer than you are tall. The simplest shelter is a fallen tree that has enough room under it for you to crawl in.
The Lost Treehouse Tribes of the Rainforest. How to build a survival shelter.