00:00There are birds that perch on injured hippos to drink their blood, and the hippo does nothing to drive them
00:04away.
00:04It's not because it can't, but because they are actually saving their life.
00:08Oxpeckers, known as the doctors of nature, settle on rhinos, elephants, and giraffes to feed on the lice, ticks, and
00:14parasites that live on their skin.
00:15They also clean open wounds by eating the rotten flesh and accumulated dirt, preventing infections that could be fatal.
00:21The process is not perfect.
00:23Sometimes, while cleaning, they end up creating new wounds.
00:25But the animals tolerate it anyway, because these birds not only serve as doctors, but also as an alarm system.
00:31They have extremely sharp eyesight, and as soon as they detect a predator approaching, they start screeching,
00:35something especially useful for animals with poor vision that otherwise would not notice the danger until it is too late.