Chapter 1
A global family of copycats
Chapter 2
The mechanics of a slip and slide
Chapter 3
The ultimate animal roommates
Chapter 4
Humans and the meat-eating plants
Ch 2 · The mechanics of a slip and slide
alicecooks Moisture from rain, dew, or nectar turns the peristome's microscopic radial ridges into a stable water film, making insects lose all traction
alicecooks The crumbling wax barrier below the rim destroys an insect's grip during escape.
Fun Fact
Wet aquaplaning: The slippery rim of a pitcher plant only becomes deadly when wet, causing insects to lose all traction and slide off instantly.
Glossary
aquaplaning (noun)
The sliding of a vehicle uncontrollably on a wet surface when water builds up under its tires. In 2004, scientists discovered Nepenthes bicalcarata uses this wet film on its rim to trap weaver ants.
The sliding of a vehicle uncontrollably on a wet surface when water builds up under its tires. In 2004, scientists discovered Nepenthes bicalcarata uses this wet film on its rim to trap weaver ants.
Quiz
What environmental condition is required for the peristome of a pitcher plant to become slippery enough for aquaplaning?
Quiz
How do the microscopic wax crystals inside a pitcher plant leaf disable an insect's feet?
Quiz
What physical property of pitcher plant fluid makes it stretch and pull struggling insects back down?
Quiz
What do pitcher plants produce to lure insects toward the slippery rim of their traps?