Trivia

Hard

Japanese Honey Bees Kill Their Primary Predator, Japanese Hornets, With?

Stings
Heat
Hormones
Ultrasonic Sound
A group of Japanese honey bees attacking two Japanese giant hornets.
Takahashi/Wikipedia

Answer: Heat

Japanese honey bees, a subspecies of the eastern honey bee found on mainland Asia, is the primary honey bee species in Japan for one reason. Despite the efforts of Japanese farmers to introduce European honey bees for the sake of their high productivity, the European bees couldn’t defend their colonies against aggressive Japanese giant hornets. The hornets are such fearsome predators to the bees that even a few hornets can completely wipe out an entire colony.

The Japanese honey bees, however, have an excellent and coordinated defense plan that succeeds where the stinging assault of the European honey bees fails. Rather than attempt to take down the hornets with their stingers (an ineffective technique that does little to faze the hornet), the Japanese bees instead mob the hornet, creating a large ball around it.

Once balled around the hornet, they begin to vibrate their bodies in exactly the same way they would to raise the temperature of their hive, but are instead transferring their heat to the hornet’s body and raising the level of carbon dioxide in the ball. The higher level of carbon dioxide combined with the bees ability to withstand temperatures approximately 7 degrees Fahrenheit (4 degrees Celsius) hotter than the hornet can kills the hornet before it can cause irreparable damage to the colony.

Trivia

Hard

The Most Expensive Typo In History Was Created By A?

Trivia

Very Hard

In Computer Chess, The Computer Evaluates The Value Of Moves Using Which Unit Of Measurement?

Trivia

Hard

The Only Crop Banned From The Futures Trading Market In The United States Is?

Trivia

Easy

In The Mid-1960s, There Was A Brief But Intense Fashion Fad Focused On Wearing?

Trivia

Hard

The Opposite Of Paranoia Is?

Trivia

Hard

What Was The First Video Game To Receive a “Mature” Rating?

Trivia

Hard

Which Country Was The First To Launch A Domestic Non-Military Satellite?

Trivia

Easy

The First Airline Stewardesses Were Required To Be?

Trivia

Hard

Software GUIs That Imitate Real World Interfaces Are Known As?

Trivia

Hard

The Only Cats That Roar Belong To Which Genus?