Vampire Bats & Vampire Bats Pics





Vampire bats Feeding
Vampire bats hunt only when it is fully dark. Like fruit-eating bats, and unlike insectivorous and fish-eating bats, they emit only low-energy sound pulses. The common vampire bat feeds mostly on the blood of mammals (occasionally including humans), whereas both the hairy-legged vampire bat and white-winged vampire bat feed on the blood of birds. Once the common vampire bat locates a host, such as a sleeping mammal, it lands and approaches it on the ground. It then likely uses thermoception to identify a warm spot on the skin to bite.
Vampire bats are very agile and a recent study found that common vampire bats can, in addition to walk, run at speeds of up to 7.9 km per hour (4.9 miles per hour). They locate a suitable place to bite using their infrared sensors.[13] They then create a small incision with their teeth and lap up blood from the wound.
As noted by Arthur M. Greenhall:
The most common species, the common vampire (Desmodus) is not fastidious and will attack any warm-blooded animal. The white-winged vampire (Diaemus) appears to have a special preference for birds and goats. In the laboratory it has not been possible to feed Diaemus on cattle blood.[14]
If there is fur on the skin of the host, the common vampire bat uses its canine and cheek teeth like a barber's blades to shave away the hairs. The bat's razor-sharp upper incisor teeth then make a 7mm long and 8mm deep cut. The upper incisors lack enamel, which keeps them permanently razor sharp.[15]
The bat’s saliva, left in the victim's resulting bite wound, has a key function in feeding from the wound. The saliva contains several compounds that prolong bleeding, such as anticoagulants that inhibit blood clotting,[16] and compounds that prevent the constriction of blood vessels near the wound.

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Vampire Bats & Vampire Bats Pics

 Vampire Bats Pics
 Vampire Bats Pics
 Vampire Bats Pics
 Vampire Bats Pics
Unique amongst mammals, the common vampire bat feeds entirely on blood sucked from its warm-blooded prey.

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Longnose Gar Fish & Longnose Gar Fish Pics

 Longnose gar fish fishing
 Longnose gar fish pics
 Longnose gar fish images
Longnose gar fish pics
Longnose gar ranges in length from 60–182 cm (24–72 in) and weighs 0.5–3.5 kg (1.1–7.7 lb); The world record is 50.31 pounds, caught in Trinity River, Texas in 1954; FishBase reports a maximum size of 2 m (6.6 ft). Average life span is 17- 20 years. The snout is elongated into a narrow beak containing many large teeth. longnose gar is found in rivers and lakes throughout the eastern half of the United States, as far north as southern Quebec and extreme southern Ontario in the Great Lakes and as far south as northern Mexico. They are more often captured by specialized methods that entangle the teeth in nylon threads, by bowfishing, or by spearfishing.
If angling for gar, a small circle hook should be used, allowing the gar several minutes with it. The circle hook will prevent any serious injury to the gar, as it is designed to catch only in the corner of the mouth.

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