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1. THE WORLD’S LARGEST BUMBLEBEE IS THE BOMBUS DAHLBOMIIOF SOUTH AMERICA.
Its queens are described as looking like flying mice.
2. BUMBLEBEE EGGS ARE SHAPED LIKE SAUSAGES.
Tiny, tiny sausages.
3. A BUMBLEBEE FLAPS ITS WINGS 200 TIMES PER SECOND.
That’s a similar RPM to some motorcycle engines.
4. BEES HAVE TO EAT A TON.
Bumblebees have extremely fast metabolisms, so they have to eat almost continuously. “A bumblebee with a full stomach is only ever about 40 minutes from starvation,” as Goulson puts it.
5. BUMBLEBEE NESTS ARE MUCH SMALLER THAN THOSE OF OTHER SPECIES.
They have a maximum of 300 to 400 worker bees, compared to the tens of thousands found in a honeybee or wasp nest. For context, there are around 25,000 known species of bee, though there are likely more that have yet to be discovered.
6. BEE SPERM LIVES FOR MONTHS INSIDE THE QUEEN BEE.
Only the fat queen bee survives winter hibernation, and she’s left to create a colony by herself. Sperm stored up from mating the previous summer survives in her ovaries, ready to fertilize her eggs once she finally finds a nesting place. By the end of the summer, when she’s a little over a year old, the queen and all her worker bees die, to be replaced by her daughters.
7. QUEEN BEES CONTROL THE GENETICS OF THEIR OFFSPRING.
Male bumblebees have only one chromosome, and no father. To produce a son, a queen bee merely has to lay an unfertilized egg. To have daughters—who make up the entirety of a bee workforce—a queen bee fertilizes her eggs with sperm she’s been storing since the previous summer.
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8. BEES HAVE COMPLICATED FAMILY TREES.
Because bee sisters receive exactly the same genes from their fathers, but only share around 50 percent of genes from their mother’s side, a female bumblebee is 75 percent related to her sisters. But she’s only 50 percent related to her children, who get half their genes from their father and half from her. That’s why it makes sense for the majority of bees in the nest to help raise the queen’s offspring, rather than running off to start their own nests. The worker bee’s sisters carry more of her genes than her children would, so she leaves that whole childbirth thing to her mother.
9. BUMBLEBEES DON’T DIE WHEN THEY STING.
That’s just a thing in honeybees. So yes, a bumblebee can sting you twice. However, male bumblebees don’t have a stinger at all, and female bumblebees aren’t very aggressive, so unless you go barging into their nest, you’re likely safe.
10. MOST OF WHAT WE KNOW ABOUT BUMBLEBEE NESTS COMES FROM AN ENTOMOLOGIST WHO DIED IN 1912.
Frederick William Lambart Sladen was the first scientist to devote his research completely to bumblebees. He published his first book about the bee at the age of 16, in 1892, solidifying himself as the world expert. And he still kind of is. “Species that are today rare or extinct in Britain, such as the short-haired bumblebee, were familiar to Sladen, and his descriptions of the nests of such species remain pretty much all that we know,” Goulson writes. “No one has come close to matching Sladen’s knowledge of the nesting habits of bumblebees.”
11. TO SAFELY PICK UP A LIVE BEE, SCIENTISTS USE A SPECIAL DEVICE.
It’s called a pooter. Hehe. Pooter. In all seriousness, it allows scientists to pick bees up to study them without harming them. Researchers can suck small insects into a jar by inhaling through one end of a tube. Mesh on the mouthpiece prevents the insect from being sucked directly into the scientist’s mouth.
12. TAKING DNA SAMPLES FROM BEES INVOLVES CUTTING OFF THEIR TOES.
Bees don’t really have toes, but scientists snip the final tarsal segment off wild bees to run genetic tests on back in the lab. It doesn’t shorten their lifespan or reduce their ability to gather food, so presumably it’s not as cruel as it sounds.
13. BEES HAVE SMELLY FEET.
Bees, like all insects, are covered in an oily film that makes them waterproof. When they land on a flower, they leave their chemical signature behind. Other bees can smell these oily footprints left on flowers, and know not to land on the same place—the nectar’s already been pillaged. Bees also use these footprints as a sort of smelly “Welcome Home” mat; the scent helps them find their way back to the entrance of their nest.
14. BUMBLEBEES AIR CONDITION THEIR NESTS WITH THEIR OWN WINGS.
If the nest gets too hot, worker bees post themselves near the entrance and fan the hot air out, like tiny flapping A/C units. The hotter it is, the more workers join in the effort in order to keep the nest at exactly 86 degrees Fahrenheit, their preferred temperature. If their body temperature rises above 111 degrees, the bumblebees will die.
15. HORDES OF MALE BUMBLEBEES CONGREGATE ON HILLTOPS.
In a study of bees in Scotland, Goulson found that areas atop hills attract an unusual amount of male bees compared to flat areas or midway up a hill. While he speculates that this may be an effort to attract mates—some other male insects gather at higher altitudes to wait for a lucky lady to come along—scientists have not observed this pick-up technique succeeding. However, bumblebees produce more eligible bachelors than they do bachelorettes. There are about seven males for every queen born, so most males never mate.
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