Yeah. Countless examples going both directions. I wouldn’t call crocodilians super adaptable, but they are so well tuned for their specific environs that they’ve been largely unchanged for 94 MILLION years.
I would argue that being warm blooded makes an animal more adaptable. Interestingly, it seems cold blooded reptiles evolved into warm blooded archosaurs which eventually led to cold blooded crocodilians. Tellingly, these active warm blooded ancestors are all extinct in favor of the passive, cold blooded, low adaptability ambush predator.
In the opposite direction, the adaptable rat has done much better than the countless specialized species that have disappeared since the industrial revolution and human explosion.
Cold blood probably makes a lot of sense for an aquatic ambush predator that needs to lie motionless for most of its life. Keeping that body warm the whole time wastes a lot of energy, especially under water. If you conserve energy, you can go longer without food which is important if you are waiting for food to come to you rather than seeking it out.
Yeah. Countless examples going both directions. I wouldn’t call crocodilians super adaptable, but they are so well tuned for their specific environs that they’ve been largely unchanged for 94 MILLION years.
I would argue that being warm blooded makes an animal more adaptable. Interestingly, it seems cold blooded reptiles evolved into warm blooded archosaurs which eventually led to cold blooded crocodilians. Tellingly, these active warm blooded ancestors are all extinct in favor of the passive, cold blooded, low adaptability ambush predator.
In the opposite direction, the adaptable rat has done much better than the countless specialized species that have disappeared since the industrial revolution and human explosion.
Cold blood probably makes a lot of sense for an aquatic ambush predator that needs to lie motionless for most of its life. Keeping that body warm the whole time wastes a lot of energy, especially under water. If you conserve energy, you can go longer without food which is important if you are waiting for food to come to you rather than seeking it out.