Investigating secondary contact of historically isolated lineages can provide insight into how
selection and drift influence genomic divergence and admixture. Here, we studied the …

Differences in resource availability and quality along environmental gradients are important
influences contributing to intraspecific variation in body size, which influences numerous life …

For various reasons, reduction or cessation of feeding (anorexia) can occur in either sex
during periods of reproduction among vertebrates, from cichlids to elephant seals. Anorexia …

Habitat heterogeneity and local resource distribution play key roles in animal search
patterns. Optimal strategies are often considered for foraging organisms, but many of the …

The major venom gland is located on each side of the head behind the eye and above the
angle of the jaw. An accessory gland of unknown function is situated along the outer edge of …

The pale postocular stripes end before the rictus of the mouth. A darker stripe is present
posterior to the pale postocular stripe. Similar to C. atrox, the tail has a distinctive and …

An animal's decision to move from one location to another within its environment is
determined by a complex blend of internal and external factors. Teasing apart the relative …

Novel Prey Item for the Western Diamond-backed Rattlesnake (Crotalus atrox): Brown-headed
Cowbird (Molothrus ater) Page 1 SONORAN HERPETOLOGIST 36 (2) 2023 56 Copyright © …

Understanding the origins of species and biological novelties that allow them to thrive in
diverse environments is a key goal in evolutionary biology, and new genomic methods are …

Arid ecosystems frequently exhibit constant conditions for geologic time frames, resulting in
a high level of biodiversity and numerous endemic species. Despite being drought tolerant …