Results 61 to 70 of about 2,106 (199)
Predicting ecology and hearing sensitivities in Parapontoporia—An extinct long‐snouted dolphin
Abstract Analyses of the cetacean (whale and dolphin) inner ear provide glimpses into the ecology and evolution of extinct and extant groups. The paleoecology of the long‐snouted odontocete (toothed whale) group, Parapontoporia, is primarily marine with its depositional context also suggesting freshwater tolerance.
Joyce Sanks, Rachel Racicot
wiley +1 more source
In reptiles, dorsal body darkness often varies with substrate color or temperature environment, and is generally presumed to be an adaptation for crypsis or thermoregulation. However, the genetic basis of pigmentation is poorly known in this group.
Josmael Corso +2 more
doaj
Octopus vulgaris Type III — an undescribed Southern Hemisphere lineage occurring along the South African coast and Amsterdam Island — is genomically distinct from O. vulgaris sensu stricto and O. sinensis, as inferred from phylogenetic analyses of 338 nuclear loci and complete mitochondrial genomes, supporting the need for taxonomic re‐evaluation of ...
Arsalan Emami‐Khoyi +6 more
wiley +1 more source
Ineffective crypsis in a crab spider: a prey community perspective [PDF]
Cryptic coloration is assumed to be beneficial to predators because of an increased encounter rate with unwary prey. This hypothesis is, however, very rarely, if ever, studied in the field. The aim of this study was to quantify the encounter rate and capture success of an ambush predator, in the field, as a function of its level of colour ...
Brechbühl, Rolf +2 more
openaire +4 more sources
The Genetic Basis of Color Polymorphism in the Orb‐Web Spider Gasteracantha cancriformis
This study investigates the genetic basis of coloration in the polymorphic spider Gasteracantha cancriformis using RNA‐seq data from different female color morphs. We assembled a reference transcriptome and identified differentially expressed genes associated with known pigmentation pathways, including carotenoids, melanin, ommochromes, and pteridines.
Paula Torres‐Quintero +3 more
wiley +1 more source
Venom in Furs: Facial Masks as Aposematic Signals in a Venomous Mammal
The function of colouration in animals includes concealment, communication and signaling, such as the use of aposematism as a warning signal. Aposematism is unusual in mammals, and exceptions help us to understand its ecology and evolution.
K. Anne-Isola Nekaris +6 more
doaj +1 more source
This study examined how background colour influences behaviour and development in golden mantella (Mantella aurantiaca) tadpoles across ontogeny. Tadpoles preferred darker backgrounds, and this preference got less strong with increasing age. Individuals reared in darker conditions were less active but did not differ in growth rate and shelter use when ...
Prathik Amin +2 more
wiley +1 more source
Skin Colour in Salamanders Is Modulated by Both Epitranscriptomic Methylation and Gene Expression
ABSTRACT Animal colouration is a key trait in organismal biology, being involved in natural and sexual selection, competition, and communication. Amphibians use their highly diverse colouration in many ecological interactions, but the molecular bases of their colour variation are less well understood than in other vertebrate systems. While the genetic,
Nicholas Strowbridge +3 more
wiley +1 more source
Animals that live in a wide range of environments possess plastic traits such as colour change, but most research has only looked at this within single populations. In this study, we tested four populations of the Arabian killifish from marine and freshwater ecosystems, examining how well they change colour against different backgrounds.
Ateah Alfakih +2 more
wiley +1 more source
We assessed behaviors of female wild turkeys during the laying period and evaluated impacts of those behaviors on nest success and female survival. We found that increased movements during laying resulted in a decreased probability of nest success but an increased probability of female survival during incubation.
Paige E. Goodman +5 more
wiley +1 more source

