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Wildlife in Winter

Exploring the winter survival strategies of wildlife

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January 9, 2022

Nictitating Membrane

By riedererjt

A nictitating membrane is a translucent inner eyelid found in birds, reptiles, and some mammals that protect the eye.

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Pages

  • An introduction to the Wildlife in Winter project
  • Feedback
  • Glossary
  • Winter Severity Index

Recent Posts

  • Carolina Grasshopper
  • Snow Flea (springtails)
  • Meadow Spittlebug
  • Blanding’s Turtle
  • Common Garter Snake

Survival Strategies

  • Active All winter
  • Annual Colony
  • Brumation
  • Communal Denning
  • Freeze-avoidance
  • Freeze-tolerance
  • Irruptive
  • Long-distant Migrant
  • Medium-distant Migrant
  • Overwinter as a Chrysalis
  • Overwinter as Eggs
  • Short-distant Migrant
  • Torpor
  • True hibernator
  • Winter Visitor
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