c.1300, to call, call out; to ask or demand by virtue of right or authority, from accented stem of Old French clamer to call, name, describe; claim; complain; declare, from Latin clamare to cry out, shout, proclaim, from PIE *kele-(2) to shout, imitative (cf. Sanskrit usakala cock, literally dawn-calling; Latin calare to announce solemnly, call out; Middle Irish cailech cock; Greek kalein to call, kelados noise, kledon report, fame; Old High German halan to call; Old ...
Most black panthers hunt at night. They are masters of concealment and use every available rock, bush, or depression to hide themselves and get as close as possible to their prey. As they wait, they are silent and cautious.
Dogs on the other hand though less dependent on their eyes, have better night vision than we do. So their ancestors could hunt both by day and by night, if necessary. Sleeping all night had no advantage to your dog, and dogs have not evolved a natural tendency to sleep for a single long stretch of time like we do.ogs on the other hand though less dependent on their eyes, have better night vision than we do. So their ancestors could hunt both by day and by night, if necessary. Sleeping all night had no advantage to your dog, and dogs have not evolved a natural tendency to sleep for a single long stretch of time like we do.