How Animals Find Their Way
We have Google Maps, or Baidu, but how do other animals know when they’ve arrived? From the monarch butterfly’s multigenerational migration to the globe-trotting of the humpback whale, animals follow astoundingly complex routes around the Earth. Learn more about their migration patterns and processes through the terms and examples below, then consider: are animals truly navigating, or just following their instincts? And is human activity making it harder for them to find their way?
- magnetoreception | cryptochromes | olfactory navigation | echolocation | zugunruhe
- constant frequency | frequency modulation | sunlight polarization | spatial memory
- indigo bunting | dung beetle | honeybees | homing pigeons | sea turtles | desert ants
On a moonless night a dung beetle spins atop its ball to read the Milky Way, then rolls a dead-straight line — on a brain smaller than a grain of rice.
Key concepts
- Magnetoreception
- Sensing Earth's magnetic field as a built-in compass — possibly via light-sensitive proteins in the eye or grains of magnetite — which is how homing pigeons hold course on a cloudy day.
+ 3 more concepts inside
Every work — at a glance
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Indigo Bunting (animal)
A songbird that migrates by night, learning north from the still point the stars rotate around — raise it under a planetarium spun the wrong way and it flies the wrong way.
+ 5 more works explained inside
What to know
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01
Most of these animals use several systems at once — a pigeon leans on magnetism, smell, and landmarks together — so navigation is built with redundancy: losing one cue doesn't strand the animal.
+ 1 more insight inside
Across subjects
Theme connection
"Are We There Yet?"
Practice — a sample
SCIAs autumn arrives, a caged migratory songbird is MOST likely to flutter —
- A Toward its migration route
- B Toward its food dish
- C Toward the brightest light
- D At its cage door
- E In aimless circles
Sign in to answer and see why each option is right or wrong.
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