When did sex chromosomes evolve from autosomes? What is selective breeding in humans? How did sexual reproduction evolve from asexual reproduction? What is the hormone that is responsible for secondary sex characteristics in females? What are the similarities between natural selection and selective breed...
What mammal has the largest brain? How wide can a whale shark open its mouth? What does a whale shark sound like? What is the largest of the great apes? What shark is bigger than a great white? What clings to the back of the gray whale?
There is more than one animal qualified as having a long tongue and more than one way to decide who has the longest. Humans are definitely not in the running, but mostly those creatures who indulge in finding insects. Answer and Explanation:1 ...
Dinosaur brains: Despite the stereotype of dinosaurs with "walnut-sized brains", many were extremely intelligent, and perhaps the most intelligent organisms on Earth at the time. They may even have been more intelligent than many mammals that came after them. ...
That’s cool for two reasons: (1) it’s odd for a (large) mammal to just trot and not use the usual walk-trot-canter-gallop series of gaits; and (2) it wasn’t known (or even asked, much) in scientific literature if hippos did go airborne or not. My favourite sequence, of a...
Neither did their tools evolve much. Early humans employed rough-and-ready lumps of rock with sharpened edges to cut, poke, drill, or spear. But these handheld tools were unspecialized and did not vary by location or time. No matter where or when in this period (called the Mesolithic) a...
The fur of this mammal, or any skin dressed in imitation of it. Genet A small-sized, well-proportioned, Spanish horse; a jennet. Genet One of several species of small Carnivora of the genus Genetta, allied to the civets, but having the scent glands less developed, and without a pouch....
Depending on one’s ultimate goal, one might desire biological insight about neural structures similar to those in humans. This would seem to require a mammal with a neocortex, at least, and an association cortex, but the study of homologous (and analogous) structures in model organisms confers...
from video on what happens. What remains is amystery: did Crocodylia have this ability to use asymmetrical gaits as an ancestral trait, as almost everyone assumes (and thus alligators and caimans have lost or essentially never express the ability), or did crocodiles uniquely evolve this ability...
Jaguars typically inhabit areas nearby watercourses, thereby heightening the potential for conflicts with humans (see [1]). While jaguars are distributed from Mexico to Argentina, their population is currently in decline, resulting in a global classification as “Near Threatened” on the IUCN Red ...