• Why don’t woodpeckers get a headache?

Have you ever seen woodpeckers striking trees with its long beaks? Woodpeckers hit the trees 20 times per second. Yet they don’t get a headache or any other head injury. The reason for thus is that woodpeckers are born with a helmet for the brain, which is formed of strong, thick muscles and sponge like bones in their skull. A woodpecker’s body too is specially designed to absorb the impact of the hit.

A millisecond before a woodpecker’s bill strikes on a tree dense muscles in the neck contract. Some of the force radiates down the neck muscles and protect the skull from a huge impact. A compressible bone in the skull offers a cushion effect too.

• Why aren’t spiders caught in their own webs?

Spiders spin their webs in a circular pattern that is spotted with sticky glue. When an insect brushes against these drops – each thread can carry several dozen per millimetre – it gets stuck and the spider rushes over to inject it with venom or cocoon it in silk. The question of course is how does the spider escape its own glue tracks? The answer lies in the fact is that the web is the spider’s home and it knows its way around the glue traps. There are some threads in the web that have no glue on them and the spider is careful to move only on these threads. It is also believed that spiders use an oily coating on their legs to protect themselves from getting stuck in their own webs!

Colourless rainbow

There are some rainbows that are colourless. They are called fogbows and are formed when the sun shines through a fog. The drops of water in the fog are too small to split up light into it’s different colours, so the fogbow is white in colour.

• What do we know about left handed animals?

Most people are right handed, though about one in ten among us is left handed. Animals like chimps, hump back whales and even toads favour one hand, paw, claw or fin over the other. Chimpanzees use both hands with ease, but have a preference for the right hand. Toads also prefer their right side to perform differ functions. Polar bears on the other hand, are left handed.

Some species of parrot such as the sulphur- crested cockatoo are entirely left handed, while others, including the king parrot are mainly right handed. The majority of parrots – including the budgie, galah and rainbow lorikeet use both claws comfortably. Female cats are more inclined to be right handed while male cats favour their left paws. The same is true for dogs. Interestingly, dogs wag their tails to the right when relaxed and to the left when agitated!

Thank you for reading. Have a nice day!🌼