Post by rock on Aug 16, 2019 13:57:01 GMT
green anaconda
With an average length of 6 m (20 ft.) and a top length of 8.8 m (29 ft.) the green anaconda is one of the longest snakes in the world. The green anaconda, with a girth of nearly 30 cm (12 in.) and a weight of 227 kg (550 lb.), is the heaviest of all snakes.
The green anaconda is native to South America, making its home in swamps, marshes and streams. Their enormous size makes it much easier for green anacondas to swim in the water than to slither slowly on land. Their eyes and nostrils are on the top of their head allowing them to see and breathe while most of their body is under water.
Most of their time is spent in the water hunting. Although they use both sight and smell to hunt, they also have the ability to sense heat emitted by potential prey. Green anacondas prey on a variety of animals including fish, birds, tapirs, wild pigs, capybaras, and caimans (reptiles similar to alligators) , they do not have many predators besides jaguars and humans who occasionally hunt them.
Anacondas are not venomous; they use constriction instead to subdue their prey. Once an anaconda sights its target, it will grab the animal in its jaws, locking it in with its teeth. Once firmly grasped, the anaconda will coil around the prey and squeeze it until it dies of crushing or suffocation. It will then consume the carcass whole. For larger prey, the green anaconda can unhinge its jaw to stretch its mouth around the body. After a big meal, anacondas can go weeks without eating again.
Green anacondas have also been known to partake in cannibalism. Females, the larger of the sexes, have been reported to eat smaller male anacondas.
Green anacondas spend most of their time alone. However, between April and May, males seek out females for the opportunity to mate. Often times, multiple males will pursue the same female. This results in “breeding balls” of up to a dozen males wrapped around a single female, all attempting to mate. The breeding ball can last up to 4 weeks.
Once pregnant, the female will produce eggs inside her body. The eggs develop for 8-12 weeks and then hatch while still inside the mother’s body. She then gives birth to as many as 80 tiny snakes, each 30-60 cm (12-24 in.) in length.
Green anacondas can live over 10 years in the wild. They can live up to 30 in captivity.
siberian tiger
The Siberian tiger (Panthera tigris altaica), also known as the Amur tiger, is a tiger subspecies inhabiting mainly the Sikhote Alin mountain region with a small subpopulation in southwest Primorye province in the Russian Far East. In 2005, there were 331–393 adult-subadult Amur tigers in this region, with a breeding adult population of about 250 individuals. The Siberian tiger is reddish-rusty or rusty-yellow in colour, with narrow black transverse stripes. Measurements taken by scientists of the Siberian Tiger Project in Sikhote-Alin range from 178 to 208 cm (70 to 82 in) in head and body length measured in straight line, with an average of 195 cm (77 in) for males; and for females ranging from 167 to 182 cm (66 to 72 in) with an average of 174 cm (69 in). The average tail measures 99 cm (39 in) in males and 91 cm (36 in) in females. The longest male “Maurice” measured 309 cm (122 in) in total length (tail of 101 cm (40 in)) and had a chest girth of 127 cm (50 in). The longest female “Maria Ivanna” measured 270 cm (110 in) in total length (tail of 88 cm (35 in)) and had a chest girth of 108 cm (43 in). These measurements show that the present Amur tiger is longer than the Bengal tiger and the African lion. According to modern research of wild Siberian tigers in Sikhote-Alin, an average adult male of more than 35 months of age weighs 176.4 kg (389 lb), the average asymptotic limit being 222.3 kg (490 lb); an adult tigress weighs 117.9 kg (260 lb). The mean weight of historical Siberian tigers is supposed to be higher: 215.3 kg (475 lb) for male tigers and 137.5 kg (303 lb) for females. In May 2011, a male called “Banzai” weighing 207 kg (460 lb) was radio-collared. This individual is heavier but smaller in size than a previously radio-collared male. The largest male, with largely assured references, measured 350 cm (140 in) "over curves", equivalent to 330 cm (130 in) between pegs. The tail length in fully grown males is about 1 m (39 in). Weights of up to 318 kg (700 lb) have been recorded and exceptionally large males weighing up to 384 kg (850 lb) are mentioned in the literature but, according to Mazák, none of these cases can be confirmed via reliable sources.
With an average length of 6 m (20 ft.) and a top length of 8.8 m (29 ft.) the green anaconda is one of the longest snakes in the world. The green anaconda, with a girth of nearly 30 cm (12 in.) and a weight of 227 kg (550 lb.), is the heaviest of all snakes.
The green anaconda is native to South America, making its home in swamps, marshes and streams. Their enormous size makes it much easier for green anacondas to swim in the water than to slither slowly on land. Their eyes and nostrils are on the top of their head allowing them to see and breathe while most of their body is under water.
Most of their time is spent in the water hunting. Although they use both sight and smell to hunt, they also have the ability to sense heat emitted by potential prey. Green anacondas prey on a variety of animals including fish, birds, tapirs, wild pigs, capybaras, and caimans (reptiles similar to alligators) , they do not have many predators besides jaguars and humans who occasionally hunt them.
Anacondas are not venomous; they use constriction instead to subdue their prey. Once an anaconda sights its target, it will grab the animal in its jaws, locking it in with its teeth. Once firmly grasped, the anaconda will coil around the prey and squeeze it until it dies of crushing or suffocation. It will then consume the carcass whole. For larger prey, the green anaconda can unhinge its jaw to stretch its mouth around the body. After a big meal, anacondas can go weeks without eating again.
Green anacondas have also been known to partake in cannibalism. Females, the larger of the sexes, have been reported to eat smaller male anacondas.
Green anacondas spend most of their time alone. However, between April and May, males seek out females for the opportunity to mate. Often times, multiple males will pursue the same female. This results in “breeding balls” of up to a dozen males wrapped around a single female, all attempting to mate. The breeding ball can last up to 4 weeks.
Once pregnant, the female will produce eggs inside her body. The eggs develop for 8-12 weeks and then hatch while still inside the mother’s body. She then gives birth to as many as 80 tiny snakes, each 30-60 cm (12-24 in.) in length.
Green anacondas can live over 10 years in the wild. They can live up to 30 in captivity.
siberian tiger
The Siberian tiger (Panthera tigris altaica), also known as the Amur tiger, is a tiger subspecies inhabiting mainly the Sikhote Alin mountain region with a small subpopulation in southwest Primorye province in the Russian Far East. In 2005, there were 331–393 adult-subadult Amur tigers in this region, with a breeding adult population of about 250 individuals. The Siberian tiger is reddish-rusty or rusty-yellow in colour, with narrow black transverse stripes. Measurements taken by scientists of the Siberian Tiger Project in Sikhote-Alin range from 178 to 208 cm (70 to 82 in) in head and body length measured in straight line, with an average of 195 cm (77 in) for males; and for females ranging from 167 to 182 cm (66 to 72 in) with an average of 174 cm (69 in). The average tail measures 99 cm (39 in) in males and 91 cm (36 in) in females. The longest male “Maurice” measured 309 cm (122 in) in total length (tail of 101 cm (40 in)) and had a chest girth of 127 cm (50 in). The longest female “Maria Ivanna” measured 270 cm (110 in) in total length (tail of 88 cm (35 in)) and had a chest girth of 108 cm (43 in). These measurements show that the present Amur tiger is longer than the Bengal tiger and the African lion. According to modern research of wild Siberian tigers in Sikhote-Alin, an average adult male of more than 35 months of age weighs 176.4 kg (389 lb), the average asymptotic limit being 222.3 kg (490 lb); an adult tigress weighs 117.9 kg (260 lb). The mean weight of historical Siberian tigers is supposed to be higher: 215.3 kg (475 lb) for male tigers and 137.5 kg (303 lb) for females. In May 2011, a male called “Banzai” weighing 207 kg (460 lb) was radio-collared. This individual is heavier but smaller in size than a previously radio-collared male. The largest male, with largely assured references, measured 350 cm (140 in) "over curves", equivalent to 330 cm (130 in) between pegs. The tail length in fully grown males is about 1 m (39 in). Weights of up to 318 kg (700 lb) have been recorded and exceptionally large males weighing up to 384 kg (850 lb) are mentioned in the literature but, according to Mazák, none of these cases can be confirmed via reliable sources.
