The secret of cockroaches

Cockroaches, a "scary" animal with many people and present almost in every family. Being so close but not sure you already know a lot about animals living with you.

Unprecedented mysteries about cockroaches

Even if the atomic bomb exploded, cockroaches were still alive!

For example, do you know these things?

1. Many people think that no animal is more disgusting than cockroaches. Out of more than 4,000 species of cockroaches, there are 30 types in our homes. House cockroaches are from 1.5 cm long (brown cockroach, Blattella germanica) to 3 cm (American cockroach, Periplaneta americana). That is still small. A fellow with it lives in the tropics 9 cm long. What did you lose? Prehistoric cockroaches, living simultaneously with dinosaurs, length up to 0.5 m.

2 . The vitality of cockroaches is very intense. Scientists said the cockroaches were still living in the atomic bomb explosion, full of radioactive substances. Only cockroaches with scorpions tolerate that toxic environment. This is even more bizarre: Cut the head of a cockroach, it is still breathing, still wiggling, meaning that it is still alive, only a few days later will return to the Ancestors.

3. In 2007, a study conducted in Japan showed that cockroaches have memory, allowing them to form conditioned reflexes and can 'teach' them (making circus movements, for example) thanks to the reaction. This radiation has conditions. The researcher trained to disrupt saliva every time he was stimulated (like Pavlov's dog) a century ago or performed a certain gesture to drink sugar water. Reflexes are conditions related to memory , which people think only mammals have.

4. There is an insect that is also very familiar to us as a termite, in shape, quite like a bee or an ant. They are social insects, in closely organized and classy populations. They use saliva to build a rather complex nest. But the genealogy is very strange: the relationship is the close relative of the cockroach. DNA analysis demonstrates this. The oldest, primitive termites living in north-western Australia are strangely like cockroaches.

5. World's heaviest cockroach : Rhino cockroach species in Australia weighing up to 30 grams.

6. The smallest cockroach on the planet: This title belongs to a cockroach species in North America with the scientific name Attaphila fungicola , a length of only 3mm - slightly higher than the fire ant.

7. The biggest wing span cockroach : Megaloblatta blaberoides is distributed in Central and South America with wingspan of 185mm.

8. The most annoying cockroach: Cockroaches live in Madagascar , producing a long-lasting murmur.

9. Cockroaches know fake death : You can test this in practice, you use a slipper to slap a cockroach they will be frozen like dead but watch for a while you will be surprised.

10. Cockroaches can also learn : An interesting study by Japanese scientists shows that cockroaches are also capable of learning and remembering information.

11. Cockroaches are virgins : this is because cockroaches may not need to have males and still have fertility. However, cockroach species are very fertile, they often give birth to 40-60 offspring in a breeding cycle. Some females only mate once and can continue to have a lifetime of pregnancy.

12. Around 4,500 species of cockroaches are known around the world but in fact, undiscovered numbers can be 2-3 times higher.

13. Many people believe that cockroaches are the only creature that can withstand the effects of nuclear weapons. However, cockroach researcher George Beccaloni thinks that this is not true because they have stronger resistance than people but are far from many other insects.

14. Some studies show that cockroaches can live up to several days after being beheaded.

15. When the weather is severe, cockroaches can eat each other or their own mucus to survive. They are insects that harass your kitchen but according to scientists only 1% of cockroaches are harmful.

16. Cockroaches can run at speeds of 5 km / h if they have the same weight with us that speed will be 700 km / h faster than all of our fastest supercars now. Not only that, they can change direction to run 25 times / s an impressive number.