Results 71 to 80 of about 59,296 (338)
DuckyDog: An Erect Amphibious Robot with Variable‐Stiffness Legs and Passive Fins
Advanced Intelligent Systems, EarlyView.DuckyDog, a quadruped amphibious robot using erect posture, is proposed with dog‐inspired tendon‐driven compliant legs for walking and paddling, a duck‐inspired body for buoyancy, and passive fins to increase propulsion. It achieves maximum speeds of 0.4 body lengths per second on land and 0.3 on water, demonstrating the ability to navigate in complex ...
Yilin Wang +3 more
wiley +1 more source
Egg clutch structure of Rhinella rumbolli (Anura: Bufonidae), a toad from the Yungas of Argentina, with a review of the reproductive diversity in Rhinella [PDF]
, 2015 Rhinella rumbolli is a poorly known, medium-sized toad endemic to the Yungas of Argentina. Recent fieldwork allowed observing its peculiar oviposition mode, which is described in this paper.
Baldo, Juan Diego +3 more
core
Leptodactylus pentadactylus [PDF]
, 2012 Number of Pages: 48Integrative BiologyGeological ...
de Sá, Rafael O. +2 more
core +1 more source
Demonstration of melatonin in amphibia
Biosystems, 1967 The presence of melatonin in the amphibian epiphysis has been ascertained earlier by several indirect methods, demonstrating the synthesizing enzyme or precursors of the compound. This communication describes the presence of melatonin in amphibian brain in a direct way, using dextran gel chromatography as a separation method.
openaire +4 more sources
Spontaneous Neoplasms in Amphibia
Tumor Biology, 1988 Cases of spontaneous neoplasms in amphibia are updated and the rarity of spontaneous neoplasia is considered as a result of either inadequate research or the regenerative capacity of these animals.
P A Tsonis, K Del Rio-Tsonis
openaire +3 more sources
The Structure, Evolution and Origin of the Amphibia. The "Orders' Rachitomi and Stereospondyli
Although fossil amphibia have long been known and have been the subject of innumerable and often very excellent works, no systematic attempt to determine their relations to one another and to the living amphibia has ever been made.
D. Watson
semanticscholar +1 more source
The Anatomical Record, EarlyView.Abstract The trigeminus nerve (cranial nerve V) is a large and significant conduit of sensory information from the face to the brain, with its three branches extending over the head to innervate a wide variety of integumentary sensory receptors, primarily tactile.
Juri A. Miyamae +4 more
wiley +1 more source
Caldasia, 1973 The study of the meiotic chromosomes of the amphibia Anura offers various findings that we consider to be useful from a taxonomic point of view.The study of the meiotic chromosomes of the amphibia Anura offers various findings that we consider to be ...
Morescalchi Alessandro, Galgano Mario
doaj
Turkish Journal of Bioscience and Collections, 2020 Hematologic parameters play an important role in the determination of the general health status as well as the physiology of amphibian species and the effects of various stress and poor conditions on some species.
Ceren Nur Özgül +2 more
doaj +1 more source
A New Species of Toad (Anura: Bufonidae: Rhinella) from Northern Peru
Taxonomy, 2021 We describe a new species of Rhinella from montane forests between 1788 and 2305 m a.s.l. in the Departamentos Amazonas and San Martín, Peru. We tentatively assign the new species to the Rhinella festae species Group based on morphological similarities ...
Edgar Lehr +5 more
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