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Lucas Hannell: Favorites Edit title

Profile PhotoLucas HannellApril 18, 2011
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strategy

Shivering muscles produce heatArctic bumblebees

The thoracic flight muscles of Arctic bumblebees generate heat by shivering.

Profile PhotoAskNature Team
strategy

Dehydration helps survive freezingArctic springtail

The body of the Arctic springtail protects from freezing temperatures via protective dehydration.

Profile PhotoAskNature Team
Protect from temperature
strategy

Branches protect plant from windArctic willow

Stems and branches of Arctic willow protect from strong winds via horizontal growth.

Profile PhotoAskNature Team
Protect from wind
idea

Polar Thermos CozyKatie Goldstone

Heat trapping system for thermoses

Profile PhotoAskNature Team
Protect from temperature
strategy

Compounds protect from extreme colda collembola

The body of Cryptopygus antarcticus functions in extreme cold via anti-freeze compounds.

Profile PhotoAskNature Team
Protect from temperature
strategy

Tusks sense chemicalsNarwhal

The tusks of male narwhals may detect chemicals related to ice formation, salinity, or prey using a vast network of fluid-filled tubules connected to the tusk's central nerve.

Profile PhotoAskNature Team
Sense chemicals (odor, taste, etc) from the environment
strategy

Habitat stores carbonwetlands

Wetlands store carbon by having a slow decomposition rate.

Profile PhotoAmber Wierck
Regulate atmospheric chemical/gas compositionStore chemical entities
strategy

Plant poison neutralizes digestive juicescotton grass

The poison produced by cotton grass protects them from lemmings by neutralizing digestive juices, leading to lemming starvation.

Profile PhotoAskNature Team
Protect from animals
strategy

Red pigment protects against UV rayssnow algae

Snow algae protects against UV damage via a red carotenoid pigment.

Profile PhotoAskNature Team
Protect from light
strategy

Flowers accommodate short growing seasonalpine snowbell

Flowers of the alpine snowbell flourish during a short growing season by forming buds in late summer and keeping them dormant through the cold winter.

Profile PhotoAskNature Team
Adapt behaviorsRegulate reproduction or growth
strategy

Biological processes continue at glacial temperaturesice worm

Physiological processes in ice worms allow them to survive and function in glacial ice thanks to an increase in adenylate nucleotides and other metabolic adaptations.

Profile PhotoAskNature Team
Maintain homeostasisProtect from temperatureRegulate cellular processes
strategy

Down feathers insulateking eider

The down feathers of eider ducks provide insulation due to lack of barbules and ability to fluff.

Profile PhotoAskNature Team
Protect from temperature
strategy

Algae protects from freezingsnow algae

The liquid cell contents of snow algae are kept liquid in freezing temperatures because the algae manufacture their own antifreeze.

Profile PhotoAskNature Team
Protect from temperature
strategy

Protein channels move water across membranescells

Aquaporin protein channels in cell membranes selectively allow polar water molecules to flow through them because they’re lined with specific, charged chemical groups.

Profile PhotoAskNature Team
Capture, absorb, or filter chemical entitiesCapture, absorb, or filter liquidsDistribute liquids
Profile Photo
Contributed by Lucas Hannell
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