Ectothermic vertebrates face many challenges of thermoregulation. Many species rely on behavioral thermoregulation and move within their landscape to maintain homeostasis. Understanding the fine-scale nature of this regulation through tracking techniques can provide a better understanding of the relationships between such species and their dynamic environments. The use of animal tracking and telemetry technology has allowed the extensive collection of such data which has enabled us to better understand the ways animals move within their landscape. However, such technologies do not come without certain costs: they are generally invasive, relatively expensive, can be too heavy for small sized animals and unreliable in certain habitats. This study provides a cost-effective and non-invasive method through photo-identification, to determine fine scale movements of individuals. With our methodology, we have been able to find that male eastern water dragons Intellagama leuseurii have home ranges one and a half times larger than those of females.
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Enter your mobile number or email address below and we'll send you a link to download the free Kindle App. Then you can start reading Kindle books on your smartphone, tablet, or computer - no Kindle device required. To get the free app, enter your mobile phone number. It's a delight. He talks about all kinds of things: the why of the pain of human childbirth. Carl Sagan takes us on a guided tour of that lost land. Louis Post-Dispatch. Carl Sagan takes us on a great reading adventure, offering his vivid and startling insight into the brain of man and beast, the origin of human intelligence, the function of our most haunting legends--and their amazing links to recent discoveries. His Emmy- and Peabody—winning television series, Cosmos, became the most widely watched series in the history of American public television. The accompanying book, also called Cosmos, is one of the bestselling science books ever published in the English language.
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This was the very first request I got, from a dear friend on my other writing blog, the moment I put this one up. People talked about it in the tavern, strangers came to try to hike up to see it, but no one ever came back alive. It seemed your fantasies had grown up with you. So, after breakfast, you set off for the mountain. It soon became evident why no one returned. It was clear that the ascent had killed a disturbing number of people. The path was ragged and uneven underfoot to start with, abominably steep in places, with rocky precipices to traverse along, and sheer rock-faces to climb. Perhaps it was just the mouth of a semi-dormant volcano. Maybe undetectable noxious gases were what killed people.
The Komodo dragon [4] Varanus komodoensis , also known as the Komodo monitor , is a species of lizard found in the Indonesian islands of Komodo , Rinca , Flores , and Gili Motang. Its unusually large size has been attributed to island gigantism , since no other carnivorous animals fill the niche on the islands where it lives. As a result of their size, these lizards dominate the ecosystems in which they live. It has been claimed that they have a venomous bite; there are two glands in the lower jaw which secrete several toxic proteins. The biological significance of these proteins is disputed, but the glands have been shown to secrete an anticoagulant. Komodo dragons' group behaviour in hunting is exceptional in the reptile world. The diet of big Komodo dragons mainly consists of Timor deer , though they also eat considerable amounts of carrion. Mating begins between May and August, and the eggs are laid in September; as many as 20 eggs are deposited at a time in an abandoned megapode nest or in a self-dug nesting hole.
