nope. not ALL humans. but they do help most humans... i guess.. in some ways C:
All humans have four chambers in their heart.
Excluding birds, all dinosaurs died out before humans evolved, so humans could not have hunted them. However, birds are dinosaurs, and humans have been hunting birds for as long as they've been hunters.
They all have organs and a heart and pump blood
they eat the insects the meke humans feall bad
Birds are often afraid of humans because they see us as potential threats due to our size and movements. To help birds feel more comfortable around us, we can avoid sudden movements, keep a safe distance, and provide food and shelter in our yards or gardens. By creating a welcoming environment for birds, we can help them feel safer and more at ease in our presence.
Humans, birds, and fish all have a notochord that is replaced by a vertebral column as the body develops.
For the same reason that humans come in different colors, shapes, and sizes. All birds are unique.
Birds have hollow bones to help them fly. Solid bones would add to much weight and make it impossible to fly. They have an inner crisscross structure to provide support.
plants,humans,birds,animls all are living things...
Yes, a part of it was from pigs, and birds and humans...
All birds can see blue, and much better than humans can.
Birds cannot fly at all without their feathers.