منابع مشابه
Tree climbing and human evolution.
Paleoanthropologists have long argued--often contentiously--about the climbing abilities of early hominins and whether a foot adapted to terrestrial bipedalism constrained regular access to trees. However, some modern humans climb tall trees routinely in pursuit of honey, fruit, and game, often without the aid of tools or support systems. Mortality and morbidity associated with facultative arbo...
متن کاملClimbing Strategy for a Flexible Tree Climbing Robot - Treebot
In this paper, we propose an autonomous tree climbing strategy for a novel tree climbing robot that is named Treebot. The proposed algorithm aims to guide Treebot in climbing along an optimal path by the use of minimal sensing resources. Inspired by inchworms, the algorithm reconstructs the shape of a tree simply by the use of tactile sensors. It reveals how the realization of an environment ca...
متن کاملResponsiveness of Brown Tree Snakes to Odors
The brown tree snake (Boiga irregularis) is native to the islands of Papua New Guinea and Northern Australia. An introduced population on Guam has been implicated in the decline of that island's avifauna, and the snakes regularly cause power outages on the island. Concern exists for accidental introduction on the Hawaiian Islands. Traps baited with live mice have been used in control efforts, b...
متن کاملQuantitation of pyrethrum residues in brown tree snakes.
A reversed-phase solid-phase extraction-gas chromatography (SPE-GC)-electron capture detection method is developed to quantitate individual rethrin residues in pyrethrum-exposed brown tree snakes. Aliquots (6 g) of homogenized snake tissue are extracted with 10 mL acetonitrile. The rethrins are recovered from the acetonitrile extract and concentrated using C8 SPE. The rethrins are eluted from t...
متن کاملFatal mycotic dermatitis in captive brown tree snakes (Boiga irregularis).
Cutaneous fungal infections occurred in four captive brown tree snakes (Boiga irregularis). The ventral scales were most commonly affected, and lesions began as areas of erythema and edema with vesicle formation, followed by development of caseous brown plaques. Lesions usually started where ventral scales overlapped and spread rapidly. All snakes died within 14 days after clinical signs were f...
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ژورنال
عنوان ژورنال: Blue Jay
سال: 1981
ISSN: 2562-5667,0006-5099
DOI: 10.29173/bluejay4681