In many different ways: “Birds” and “reptiles” are extremely broad animal categories, and you'll be able to find any kind of animal relationship netween species belonging to either group. read more
“Birds” and “reptiles” are extremely broad animal categories, and you’ll be able to find any kind of animal relationship netween species belonging to either group. Besides, birds are a subgroup of dinosaurs, which are a subgroup of reptiles. read more
Well, ‘reptiles’ isn’t a very distinct group, so let’s just start with what birds DID evolve from - there were some crocodile-like animals called thecodonts that evolved along the archosaur line from the earlier diapsids - they had an upright walking stance, and may have been partial endotherms. read more
Competitive interactions are interactions involving two or more species that are vying for the same resource. In these interactions, both of the species involved are negatively affected. Competitive interactions are in many cases indirect, such as when two species both consume the same resource but do not directly interact with each other. read more