Male anglerfish permanently fuse to females and become sperm sacs. Males are 60 times smaller than their mates. They bite the female and never let go. Their body dissolves except for reproductive organs. One female can have 8 males attached.
FACT
@fact5
Animal OdditiesFeb 04, 2026
Male anglerfish are 60 times smaller than females and survive by permanently fusing their body to the female, becoming a living sperm sac.
KEEP SCROLLING
More strange facts ✦
FACT
@fact5
Animal Oddities
Tardigrades can survive in space for 10 days without protection and come back to life after being completely dehydrated for decades
FACT
@fact5
Animal Oddities
Male seahorses are the only species where males get pregnant and can give birth to 2,000 babies at once
FACT
@fact5
Animal Oddities
Sea otters hold hands while sleeping so they don't drift apart in ocean currents, and mothers wrap their babies in kelp like blankets.
FACT
@fact5
Animal Oddities
Wombats produce cube-shaped poop and scientists discovered they achieve this by having square-shaped intestines that compress waste into cubes.
FACT
@fact5
Dark History
In 1932, Australia declared war on emus and lost after the birds destroyed crops and evaded machine gun fire for weeks.
FACT
@fact5
Dark History
In 1518, hundreds of people in Strasbourg danced themselves to death in a plague that lasted for months, with some dancing for days without stopping.
FACT
@fact5
Dark History
During the 1904 Olympics, marathon runners were given brandy and strychnine as performance enhancers, and one athlete nearly died from rat poison.
FACT
@fact5
Ironic Twists
The inventor of the TV dinner never actually ate one because he was disgusted by frozen food and only ate fresh meals.
FACT
@fact5
Animals
Dolphin Name Tags
FACT
@fact5
Heartwarming Humanity
A janitor in Chicago secretly paid college tuition for 33 students over 20 years by living in a one-room apartment and saving every penny.
FACT
@fact5
Bizarre Human Behavior
In 2013, a man in Norway was arrested for attempting to rob a bank with a spoon because he thought guns were too violent.
FACT
@fact5
Unbelievable Records
The longest hiccupping fit lasted 68 years, with Charles Osborne hiccupping every 1.5 seconds from 1922 until 1990.