Results 91 to 100 of about 14,839 (236)

Optimizing snake locomotion in the plane. II. Large transverse friction [PDF]

arXiv, 2013
We determine analytically the form of optimal snake locomotion when the coefficient of transverse friction is large, the typical regime for biological and robotic snakes. We find that the optimal snake motion is a retrograde traveling wave, with a wave amplitude that decays as the -1/4 power of the coefficient of transverse friction. This result agrees
arxiv  

Effects of Road Interactions on Mate‐Searching Movements and Mate Location Success in an Imperiled Pit Viper (Crotalus horridus)

Ecology and Evolution, Volume 15, Issue 4, April 2025.
Our study aimed to provide additional evidence for sub‐lethal effects of roadways on animal behavior. In this case, we found strong support for increased road interactions by males during mating seasons and the possibility of reduced mate searching efficiency by those males interacting with roads that warrants future investigation.
Elizabeth J. Noble, Anna F. Tipton, Morgan L. Thompson, John R. Powers, Amber A. Stubbs, William L. Tillett II, Jorge A. Vázquez Diosdado, Dominic L. DeSantis   +7 more
wiley   +1 more source

Ritualistic Male–Male Combat of the Northern King Cobra (Ophiophagus hannah) in Thailand

Ecology and Evolution, Volume 15, Issue 4, April 2025.
Following the recent taxonomic split of the king cobra complex, it is important to provide new information and context to behaviors and natural history linked to each new species. We therefore provide detailed observations of ritualistic male–male combat of the newly described northern king cobra (Ophiophagus hannah).
David Roman Bontrager, Jack T. Christie, Andrew J. Pierce, Taksin Artchawakom, Surachit Waengsothorn, Max Dolton Jones   +5 more
wiley   +1 more source

Factors underlying the natural resistance of animals against snake venoms

Memorias do Instituto Oswaldo Cruz, 1989
The existence of mammals and reptilia with a natural resistance to snake venoms is known since a long time. This fact has been subjected to the study by several research workers.
H. Moussatché, J. Perales
doaj   +1 more source

Biochemical Studies on the Therapeutic Effect of Naja nubiae Venom Against Melamine Induced Hepatotoxicity in Albino Rats

Food Science &Nutrition, Volume 13, Issue 4, April 2025.
Illegal melamine analogs are added to food to make it appear as if it contains more protein. ABSTRACT Illegal melamine analogs are added to food to make it appear as though it contains more protein. These substances have negative impacts on both humans and animals in high quantities. The present paper examines how cobra venom shields rats from melamine‐
Al‐Shimaa M. Abas, Akaber T. Keshta, Samah A. Mohammed, Shimaa H. Watad   +3 more
wiley   +1 more source

Danger versus fear: A key to understanding biophobia

People and Nature, Volume 7, Issue 4, Page 847-859, April 2025.
Abstract Which animals do people fear most, and why? Exploring animal fears in humans is crucial for understanding reactions in the face of danger, addressing both innate and learned determinants. Because of the central role they are thought to have played in primate evolution, most studies have focused on the fear of snakes.
Karl Zeller, Nicolas Mouquet, Cécile Garcia, Guillaume Dezecache, Audrey Maille, Julie Duboscq, Luca Morino, Xavier Bonnet   +7 more
wiley   +1 more source

Long‐term interventions by conservation and development projects support successful recovery of tropical peatlands in Amazonia

People and Nature, Volume 7, Issue 4, Page 871-886, April 2025.
Abstract Rural communities in Amazonia rely on harvesting Mauritia flexuosa fruit, a dominant peatland palm, for their subsistence and income. However, these palms are felled to harvest the fruits, which has led to reduced resource availability due to the pressure exerted by the increasing fruit demand.
Eurídice N. Honorio Coronado, Julio Grández Rios, Jhon del Águila Pasquel, Gerardo Flores Llampazo, Cesar J. Córdova Oroche, José Reyna Huaymacari, C. Gabriel Hidalgo Pizango, Luis Freitas Alvarado, Ulises Pipa Murayari, Gonzalo Isla Reátegui, Chris López Álvarez, Eva Loja Aleman, Emiliana Isasi‐Catalá, Joaquín Gutierrez‐Sotelo, Frederick C. Draper, Margarita del Aguila Villacorta, Timothy R. Baker, Dennis del Castillo Torres, Kenton de la Cruz Gamarra, Daniel Escobedo Guerra, Ian T. Lawson, Manuel Martín Brañas, Estela P. Martinez Gonzales, Jacqueline Ramirez Chávez, Katherine H. Roucoux   +24 more
wiley   +1 more source

Para‐aminopropiophenone toxicity in domestic dogs: a description of non‐target toxicosis in Victoria, Australia: 13 dogs (2016–2023)

Australian Veterinary Journal, Volume 103, Issue 4, Page 215-223, April 2025.
Background PAPP is widely used in Australia as a potent vertebrate bait, with potential for off‐target ingestion and poisoning in domestic dogs. Whilst toxicosis and resulting methaemoglobinaemia is anecdotally known to occur, this is the first description in the literature.
R Llewellyn, J Cotela, C Lauinger, M Blevins, A Tudor, M Ray, S Ciaravolo, E Tudor   +7 more
wiley   +1 more source

Human Mast Cell Tryptase Is a Potential Treatment for Snakebite Envenoming Across Multiple Snake Species

Frontiers in Immunology, 2018
Snake envenoming is a serious and neglected public health crisis that is responsible for as many as 125,000 deaths per year, which is one of the reasons the World Health Organization has recently reinstated snakebite envenoming to its list of category A ...
Elizabeth Anderson, Kathrin Stavenhagen, Daniel Kolarich, Christian P. Sommerhoff, Marcus Maurer, Martin Metz   +5 more
doaj   +1 more source

Graceful Labellings of Various Cyclic Snakes [PDF]

arXiv, 2020
In this paper, we present a new sufficiency condition to obtain a graceful labelling for every $kC_{4n}$ snake and use this condition to label every such snake for $n=1,2,\ldots,6$. Then, we extend this result to cyclic snakes where the cycles lengths vary. Also, we obtain new results on the (near) graceful labelling of cyclic snakes based on cycles of
arxiv