How do Hummingbirds escape predators in the sky?

No bird can attack a hummingbird in the sky because like a helicopter, it can go up, down, sideways, backwards, even upside down! The wings of the hummingbird are made of hand bones instead of arm bones giving them great flexibility. They also have muscles that power both the up and down stroke instead of just the down stroke as in other birds. 

Does the colour of a Goldfish change when kept in a dark room?

The colours of fish are due to the presence of pigment cells called chromatophores which reflect or absorb light. If left in the dark for a period of time, this pigment cells are not activated and gradually change colour.

Do some Owls hunt during the day?

Different types of owls have different periods of hunting. The colour of the eyes gives indication of the time when the owl hunts. While owls with yellow coloured eyes hunt during daytime, owls with orange coloured eyes hunt during the twilight hours that is the time between dawn and dusk and owls with dark coloured eyes hurt during night time.

Why are Dolphins used for medical treatment?

The characteristics of dolphins have given rise to the dolphin assisted therapy (DAT). This has been used as a therapeutic approach to increase speech and motor skills in patients who have been diagnosed with developmental, physical and/or emotional disability such as mental retardation, down syndrome and autism. Many believe that dolphins have human like emotions and the compassion that they are able to give increases self-confidence, social skills and academic achievement in children and others who may be lacking these skills.

How do Octopuses protect themselves from predators?

Octopuses like chameleons are able to change their colour and even their skin texture to blend into their surroundings so that their enemies cannot see them. Octopuses can further hide themselves by spraying ink at an attacker. This dark makes it difficult for an attacker to see the octopus giving it time to get away. Further the ink interferes with the attackers abilities to smell which can further throw of predators like sharks that rely on their sense of smell to hunt. 

What makes Penguins the fastest swimming birds on Earth?

Penguins use their wings as paddles when they are swimming, enabling them to fly through the water. Some penguins travel more than 22 miles an hour when swimming underwater making them the fastest swimming birds on earth. These large penguins can even dive down as deep as 870 feet and can stay underwater for more than 15 minutes at a stretch!

Why are Jackals noisy?

Why are Jackals noisy?

Jackals are noisy because they communicate with each other by a screaming yell and yapping or a siren like howl when a kill is located. Yipping calls are made when the family gathers. Members only respond to their family’s calls and ignore those of other individuals. 

Do Hippos sweat blood?

Do Hippos sweat blood?

On its skin are pores which exude droplets of moisture containing red pigments. As light is reflected through these droplets they appear red giving rise to the statement that “Hippos sweat blood”. This substance not only cools a hot Hippo down but may also fight skin infections and diseases. 

Can you blow into a Dog’s ear?

Can you blow into a Dog’s ear?

A dog’s ear is very sensitive, full of sensory nerves that helps to preserve hearing. Never blow into a dog’s ear, even gently. It can hurt a dog. It’s  not the actual act of wind but the frequency at which you blow. It’s like running your fingers on the blackboard amplified hundreds of times!

Why do Sharks bite humans and leave them?

Why do Sharks bite humans and leave them?

Most sharks like to test their prey before entirely devouring them and that’s why most attacks on humans are just a bite or two. They are known to perform test biting with many familiar and unfamiliar objects in order to determine what kind of object it might be. Humans in any case are not appropriate prey for them as the sharks digestion is too slow to cope with the humans body high ratio of bone to muscle and fat. Even if they attack humans by mistake, a death occurs by loss of blood from the initial limb injury rather than from devouring.