Sexual size dimorphism has motivated a large body of research on mammalian mating strategies and sexual selection. Despite some contrary evidence, the narrative that larger males are the norm in mammals—upheld since Darwin’s Descent of Man—still domin
Consideration of the physical properties of substrates facilitate an improved understanding of morphological functions [25].The effect of the properties of the locomotor substrate on their locomotor function is more pronounced among small tetrapods [26,27,28]. In some cases, animals use the ...
www.nature.com/scientificreports OPEN Rattlesnakes are extremely fast and variable when striking at kangaroo rats in nature: Three- received: 25 October 2016 accepted: 06 December 2016 Published: 13 January 2017 dimensional high-speed kinematics at night Timothy E. Higham1, Rulon W. ...
These differences suggest that the sex-specific neural circuits in the LS of birds respond to SIS differently than in mammals, indicating that the neural pathways governing social behavior in these amniote lineages may have evolved independently. The VMH is another critical brain region associated ...
(a) Are mammals more highly evolved than lizards, birds, and frogs? (b) Why or why not? What do you believe is the single most important feature that mammals possess that have allowed for their success and why? Why are all animals comprised of the clade metazoa? What are similar adaptat...
all with monstrous appetites as befits their huge size” (p. 111). He also stated that big sauropods didn’t have access to the sorts of resources that would have allowed persistence at high diversity, and furthermore pointed to work (including his own) whereby supposed species and genera ...
The earliest known proto-reptiles originated around 312 million years ago during the Carboniferous period, having evolved from advanced reptiliomorph tetrapods which became increasingly adapted to life on dry land. The earliest known eureptile (“true reptile”) was Hylonomus, a small and superficial...
Unconventional reservoirs have no more heterogeneity than the operators who currently control them. In other words, not all companies are created equal. It’s true in all other sectors of the economy, certainly no different here. To say the shale “revolution” is only made possible by cheap ...
I have always wondered what is the lifespan of a frog or toad? Do they live for just one season or longer than that? Byjulies— On Dec 02, 2012 We have toads that like to hang out around our basement steps. I don't really mind them since I know they eat a lot of bugs. If ...
We used to think—and many of us were taught in school—that the dinosaurs went extinct many millions of years ago. But now it seems like this might not be the case.