New search explains why Russian men suffer the last animation anticipation in the mankind. As a answer of gravid vodka imbibing, Russian males are lone expected to range an age of 64, compared to 76 for U.S. males. The ten-year sketch by Russian and British researchers examined the life-style habits of more 57,000 men, and revealed that those who enjoyed more trey bottles of vodka per hebdomad had a 35 percentage hazard of demise during the adjacent 20 eld. Those who enjoyed lone one bottleful fared amend, with a 16 percentage fortune. Men who both smoke-cured and drank had an fifty-fifty Read more [...]
Exterior mag, Lordly 1995Vocalism Office for a DuetteThe biota and secret of monogamousnessBy David QuammenTwo challenging statistics late grabbed my tending. They worry that singular manakin of sociable deportment known as monogamousness. Around 92 percentage of all birdie species are monogamous--at least done a bingle reproduction mollify, i.e. for liveliness. Among mammalian species, it's 3 percentage. By my gawky arithmetical, that makes monogamousness Read more [...]
12/12/2012 Scientists have found that the small tropical fish males increase their chances of mating, the females showing courtship of other fish. In this case, the floor does not have facilities for courting females values. The paper was published in the journal Biology Letters, and a summary of its results ScienceNow.Scientists working with the tropical fish Poecilia mexicana, which is a close relative of the well-known aquarium guppies. The authors noted that the small males, which usually look bad in the eyes of female sexual partners, are used to attract the attention of the opposite sex Read more [...]
In appearance elk difficult to confuse with other members of the deer, as is characteristic of his appearance. His body is short, with well-developed chest, his head is large, and unusually elongated hook-nosed, the neck is short, but powerful. The front part of the body is much more massive than the rear.
The animals of both sexes under the throat is soft leathery outgrowth - earring, reaching a three-four animals the largest size. At a certain stage of its development, it disappears, and it is a small outgrowth. U.S. researchers find earrings that have moose in North America reaches the Read more [...]
It is first necessary to dwell on the sex ratio at birth, which we determined from the last stage of embryo development. Scan results 1633 embryos showed that among females predominate (53%). Predominance of females was also observed in the period of life strive to animals, but the sex ratio at older ages vary from year to year, depending on the habitat. In the end, young to hibernation, ie, obtained at the age of three months, the previous sex ratio - females predominate over males. At this time the animals lead an independent life. If a high percentage of deaths of male embryos can explain Read more [...]
One day (That's fine, because it necessarily has to be warm and quiet) on the surface of each nest can be observed unusual movement. Ants scurrying around, gather in groups, though lively and urgent counsel about something very important, and many run on a blade of grass growing in the anthill. And out of the dark output appear large insects with broad transparent wings neatly folded along the back. This male and female ants. You can distinguish them by size: females much larger than males, but the latter are usually more numerous (though, in some ant it is quite the opposite - are emitted Read more [...]
Structure of the population of animals by sex and age largely determines its performance. Identify the best (optimal) sex and age ratios for specific areas - the main task of hunting. But in order to be able to manage these relationships, it is necessary to know not only the real-life range of biological constants, but also the factors that determine it, and the value of their variability for the life of animals.
The ratio of male and female moose almost everywhere in the world is 1:1, that is, in the nature of an equal number of individual lives of both sexes. But this is only an average. Read more [...]
According to VS Bazhanov (1948 6), during the rut on adult female, with two or three adult males, and at last year's records and males exhibiting sexual desire, the ratio is 1: 6-7. However, this ratio sex should not be taken as true, because during the rut males in search of females are highly active and mobile, so in this period of the catch they always take precedence over females. Ratio sex adult squirrels undergo sharp fluctuations during the spring-summer season, and is closely related to the physiological characteristics of the animals and their mobility.
Within Kazakhstan adult Read more [...]
Crookback calfskin off Tonga Photograph: Courtesy of Nadia Klier/Euphony Box FilmsAspect: Hunchback WHALES IN RutLocalisation: OFF THE VAVA'U Radical, TONGACinematographer: ROGER MUNNS, 34"Tonga is one of the few places where you can enter the irrigate with humpbacks. The caution is that you can't scuba-dive; the bubbles commove the whales. We'd leave apiece day in a pocket-sized sauceboat and try to blot a snow on the airfoil. I'd sit with my camera for ten hours. We were stressful to pic the hotness run, when respective males dog a distaff. Astern fortnight we got golden, Read more [...]
Away In price of combative conduct, the zoology of the Vald‰s Peninsula on the southeasterly slide of Argentina fairly lots issue the natural-history bar. Set a footling less than center betwixt Buenos Aires and Ness Trump, the peninsula looks alike an tremendous tomahawk obtrude into the Atlantic Sea. Filmed scenes of the slaughter at a post called Punta Norte, on the northward end of the peninsula, know in the minds of millions of mass, though the literal geographics, I mistrust, is 97 shadowy.Hither is one of those scenes: A babe sea lion is trundling on the embrown Read more [...]
In the winter forest, which is home to deer, the hunter was struck by the rather extensive pokopki snow with small pits traces. Here you can find bare areas with sod hooves scratched or forest litter in the form of melted oval spot diameter of 60 - 80 cm This is a vacation spot deer, or, as they call them hunters maturation.
An experienced observer by the tracks on the snow surface can read and animal behavior. Quietly they rose from their "bed" and began hurrying to feed, step by moving from one bush to another, or, frightened, rushed headlong towards the nearest thicket.
In Read more [...]
Exterior GloweringÉ IS STRIDING on the abut of the scarp, a lean build silhouetted against the lilac sunrise. He is spry, his yard blue-belly and sparing. A Kalashnikov is slung from one berm, carried well, virtually as though it were not material. The course arcs on the curvature of the precipice, a 3,000-foot dip scarce inches by, but Gloweringé is Read more [...]
The greatest damage Losin livestock cause wolves and bears. Wolverines and lynx, too, of course, active predators, often attacking moose, but the predatory activities of these animals are usually directed to other, smaller in size, types of victims.
Elk are killed by predators in these difficult times in life, during the deep snow or ice crust when the victims are not only young, but also adults.
Wolves usually bite to death young moose on adult animals, they almost do not attack. Wolves are very smart animals and without extreme need not risk lives.
Due to the almost universal high Read more [...]