Giant camel spider

 This is a giant camel spider

so-called because they have been known to devour camels alive. OK, ok, that’s just a myth. The fact that they’re commonly found alongside dead camels is just a coincidence. If you believe in that sort of thing…

They’re not actually spiders, but an older fork in the arachnid family tree. They eat spiders, scorpions, lizards, mice and the occasional bird. They’re not venomous, but those jaws can deliver an infamously painful bite. They kill things by tearing them apart.

They live in deserts — both in the Americas and in the Middle East. They can run very fast for short distances (10 mph), jump several feet, and can scream — yes, scream — as they run. I knew a couple of guys serving in Iraq who ran afoul of them and think they’re more dangerous than Al Qaeda. One guy claimed he spent a shift on guard duty at a remote checkpoint perched atop a Humvee because one came flying out of the night and attacked him.

সোর্স: Tom Kehoe

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প্যারেন্টিঙ ও বাস্তবতা

 প্যারেন্টিঙ ও বাস্তবতা

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6

“Sunbittern: The bird with butterfly wings”

 কি চমতকার!!

“Sunbittern: The bird with butterfly wings”

“The sunbittern is a bird of tropical regions of the Americas, and the only member of its family and genus. It has a striking wing display that reveals bright eyespots in red, yellow, and black. These are used for various purposes, such as attracting mates, intimidating rivals, or scaring off predators.

The sunbittern has a long and slender neck, a stout body, and a small head. Its plumage is mainly brown with fine linear patterns of black, grey and white. Its bill is long and pointed, black above and orange below. Its legs are also orange in color. It is related to the kagu, a rare bird from New Caledonia. They both have powder down, a special type of feather that produces a fine dust to keep them clean.

The sunbittern is found in Central and South America, from Guatemala to Brazil. It prefers lowlands, foothills and well-wooded banks of streams and creeks with shallow wading water. It hunts fish, amphibians, crustaceans and insects by striking quickly with its neck and bill. It is often seen individually or in pairs.

The sunbittern builds a shallow cup-shaped nest of sticks, mud and decaying vegetables in a bush or tree. It lays two or three light brown eggs with dark spots and blotches. Both parents take turns incubating the eggs for about 28 days. If a predator approaches the nest, one of the parents will pretend to have a broken wing to distract the hunter. The sunbittern can live up to 33 years in captivity.

The sunbittern is an elegant and fascinating bird that deserves more attention and appreciation. It is currently classified as least concern by the IUCN, but it may face threats from habitat loss and degradation in the future.”

সোর্স: Earth Unreal

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Copepod + Vibrio cholerae কলেরার জীবাণু কপিপোডদের ওপর ভর করে বাঁচে!

 What you see here is actually one of the world's most active killers and its unwitting accomplice. To the right, you see a copepod, a tiny member of the zooplankton family (typically, no longer than 2 millimetres) that—despite its appearances—poses little danger to humans. On the left, you see a collection of dormant spores of the bacterium Vibrio cholera, commonly known simply as "cholera."

Scientists have long pondered the mechanism by which cholera would seemingly disappear from an environment only to sporadically pop up again. They have determined that if the conditions aren't right for V. Cholerae, it shrinks into a spore and stays mobile by hitching a ride on the copepod's back or colonizes in its intestines.

https://www.quora.com/

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মাছি খাবারের ওপর বসলে কি করে?

 After what you read, you will probably never touch that food on which a fly landed...

Most of the more than 110,000 known fly species have no teeth, so they cannot chew solid food. Their mouthparts are like a spongy straw. Once they land on the food, they need to release digestive juices to liquefy it into a pre-digested, gobbled soup that they can swallow.

To fit more food into the stomach, some flies try to reduce the liquid of what they have already eaten. They regurgitate food in vomit bubbles to dry it out a bit. Once some of the water has evaporated, they can ingest this more concentrated food.

And they do this operation just when they land on your macaroni with meat sauce or pork chop.

Disgust aside, what should worry you most when a fly lands on your food is not its vomit, but rather the microbes it could release upon contact with its legs.

In fact, flies land on everything, excrement, corpses and rubbish in general, thus becoming vehicles of even serious diseases.

But flies also have a reason to exist. Meanwhile they are food for other animals. They are an important group of pollinators, and many plants require flies to reproduce.

Some flies also have medical uses. For example, doctors use midge maggots, the young, immature form of midges, to remove decaying tissue in wounds. The worms release antiviral and antimicrobial juices, and these have helped scientists create new treatments for infections.

Finally, biomedical scientists around the world study fruit flies to find causes and cures for diseases and genetic disorders.

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বুড়ো হতে চাইলে এ উপকরণগুলো কাজ করবে।

 জ্ঞান কান্ড

বুড়ো হতে চাইলে এ উপকরণগুলো কাজ করবে। জলদি খেতে থাকো!

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1Abdus Sabur Dhms

Story of Baby Owl বেবী প‍্যাঁচার কাহিনী

 1. Baby owls are called owlets.

2. Owlets are born with their eyes closed and rely entirely on their parents for food and protection.

3. The parents of owlets are very attentive and provide round-the-clock care for their young.

4. Owlets have fluffy down feathers that help keep them warm.

5. Owlets grow rapidly and will begin to explore their surroundings within a few weeks of hatching.

6. The distinctive "whooo" sound associated with owls is something that owlets learn from their parents.

7. Owlets have excellent night vision and hearing, which helps them hunt for food even in the dark.

8. Baby owls often remain with their parents for several months before they become independent.

9. Owlets of different owl species can vary in size, from tiny owlets of pygmy owls to larger owlets of great horned owls.

10. Watching baby owls grow and learn to fly is a fascinating experience that showcases the wonders of nature.

https://www.quora.com/

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