Results 71 to 80 of about 7,455 (210)

Found alive after 6,000 years: modern records of an ‘extinct’ Papuan marsupial, Dactylonax kambuayai (Marsupialia: Petauridae), with a revision of the systematics and zoogeography of the genus Dactylonax

Records of the Australian Museum
The Pygmy Long-fingered Possum, Dactylonax kambuayai, is the smallest of the striped possums (the petaurid subfamily Dactylopsilinae). It is a ‘Lazarus species’, found living when previously known only from fossils.
Tim F. Flannery, Kenneth P. Aplin, Carlos Bocos, Loukas G. Koungoulos, Kristofer M. Helgen   +4 more
doaj   +1 more source

Aerobic power, huddling and the efficiency of torpor in the South American marsupial, Dromiciops gliroides. [PDF]

, 2012
During periods of cold, small endotherms depend on a continuous supply of food and energy to maintain euthermic body temperature (T(b)), which can be challenging if food is limited. In these conditions, energy-saving strategies are critical to reduce the
Chappell, Mark A, Contreras, Carolina, Cortés, Pablo, Franco, Marcela, Nespolo, Roberto F, Soto-Gamboa, Mauricio   +5 more
core   +3 more sources

Down to earth: therian mammals became more terrestrial towards the end of the Cretaceous

Palaeontology, Volume 68, Issue 2, March/April 2025.
Abstract The end Cretaceous extinctions had a profound effect on mammalian diversity, especially on metatherians (marsupials and their extinct relatives). Could mammalian substrate preference have influenced differential survival patterns? The plant fossil record shows changing angiosperm leaf anatomy during the last ten million years of the Cretaceous
Christine M. Janis, Alberto Martín‐Serra, Jessica M. Theodor, Craig S. Scott   +3 more
wiley   +1 more source

Philander opossum (Marsupialia), a new host record for Sparganum of Lueheella Baer, 1924 (= Spirometra Mueller, 1937)

Memorias do Instituto Oswaldo Cruz, 1984
Two samples of Sparganum, the larval form of Lueheella Baer, 1924 (= Spirometra Mueller, 1937) were recovered from Philander opossum (L. 1758) captured in Salobra, Mato Grosso State, Brazil, by Dr. Lauro Travassos in may, 1942.
Delir Corrêa Gomes
doaj   +1 more source

Latitudinal Variation in the Timing of Nest Predator Activity Is Habitat Specific

Global Ecology and Biogeography, Volume 34, Issue 1, January 2025.
ABSTRACT Aim The goal of this work was to investigate whether the community of avian nest predators shifts from nocturnal to diurnal with changes in latitude. This hypothesis was formulated 70 years ago, under the rationale that longer day length during the bird breeding season at high latitudes increases opportunities for visual predators.
Léna de Framond, Clinton D. Francis, Mihai Valcu, Henrik Brumm   +3 more
wiley   +1 more source

Adaptive evolution of the venom-targeted vWF protein in opossums that eat pitvipers. [PDF]

PLoS ONE, 2011
The rapid evolution of venom toxin genes is often explained as the result of a biochemical arms race between venomous animals and their prey. However, it is not clear that an arms race analogy is appropriate in this context because there is no published ...
Sharon A Jansa, Robert S Voss
doaj   +1 more source

On the identity of Thylamys (Marsupialia, Didelphidae) from the western pampas and south-central espinal, Argentina [PDF]

, 2009
El género Thylamys es el más diverso de todos los pequeños didélfidos que puede encontrarse en Argentina, pero la situación taxonómica de varias formas que lo componen no está aún resuelta.
Martin, Gabriel Mario
core  

Detecting the symplesiomorphy trap: a multigene phylogenetic analysis of terebelliform annelids [PDF]

, 2011
Background For phylogenetic reconstructions, conflict in signal is a potential problem for tree reconstruction. For instance, molecular data from different cellular components, such as the mitochondrion and nucleus, may be inconsistent with ...
Min Zhong, Benjamin Hansen, Maximilian Nesnidal, Anja Golombek, Kenneth M Halanych, Torsten H Struck   +5 more
core   +1 more source

Turbinal bones are still one of the last frontiers of the tetrapod skull: hypotheses, challenges and perspectives

Biological Reviews, Volume 99, Issue 6, Page 2304-2337, December 2024.
ABSTRACT Turbinals are bony or cartilaginous structures that are present in the nasal cavity of most tetrapods. They are involved in key functions such as olfaction, heat, and moisture conservation, as well as protection of the respiratory tract. Despite recent studies that challenged long‐standing hypotheses about their physiological and genomic ...
Quentin Martinez, Eli Amson, Irina Ruf, Timothy D. Smith, Nelly Pirot, Morgane Broyon, Renaud Lebrun, Guillaume Captier, Cristina Gascó Martín, Gabriel Ferreira, Pierre‐Henri Fabre   +10 more
wiley   +1 more source

A Robust and Versatile Mating Function for Two‐Sex Population Projection Models Fitting all Types of Mating Systems

Ecology Letters, Volume 27, Issue 11, November 2024.
Commonly used two‐sex discrete‐time population projection models rely on mating functions developed for continuous‐time frameworks that overestimate the number of unions between reproductive individuals. We propose a novel mating function that is robust by obeying all properties necessary to be ecologically valid and flexible by accommodating all ...
Jessica Cachelou, Christophe Coste, Jean‐Michel Gaillard, Agathe Chassagneux, Emmanuelle Richard, Eric Baubet, Marlène Gamelon   +6 more
wiley   +1 more source