Countercurrent heat exchange that allows outgoing blood to be heated so that
extremeties don't freeze
-less body heat is lost, can be bypassed in summer
(ex: duck's feet, beaver's tails)
Give this one a try later!
Solutions to Sub-zero Temps:Rete Mirabile/Wonderful Net
,aggressive group defence that pheremones summon the troops and gets all the
members to release these attack pheremones to warn them of danger
ex. wasps (yellow jackets)
Give this one a try later!
Attack Pheromones
-huge eyes
-lots of rods
-less precise vision but more sensitive to shapes and movement
-flat face with eyes on the front
-can move 270 degrees to see behind it in its blind spot
Give this one a try later!
Owls (nocturnal version of hawks)
Gray tree frog= can change colour to match the background
Give this one a try later!
Bark Mimic
ex: beaver tail slap
Give this one a try later!
, Startle sound
Iridescent layer found in nocturnal animals for maximizing vision under low intensity
light
Give this one a try later!
tapetum lucidum
A kind of panting that better exposes the Jacobson's organ
(ex: foxes)
Give this one a try later!
flemen
most songbirds migrate only at night because food is available during the daytime
and there are fewer predators at night (calmer, cooler and safer at night)
Give this one a try later!
Migrating at Night
ex. woodpeckers stay in cavities overnight inside trees
ex. small owls go inside cavities
ex. chickadees
, ex. flying squirrels huddle together in cavities
ex. racoons=use cavities and huddle
Give this one a try later!
Sleeping in Sub-Zero Temps: Cavities
ex. chickadees
-can lower their internal body core temp dramatically by 12 degrees on a cold night
-go into deep sleep called topor which takes less energy to replace body heat being
lost from the body
Give this one a try later!
Sleeping in Sub-Zero Temps: Topor
dams block water in a stream to make a pond
-add mud for insulation
Give this one a try later!
Sleeping in Sub-Zero Temps: Dams
have a long extension off the intestines where bacteria reside to breakdown plant
tissues that are hard to break down internally
ex. ruffed grouse= have caeca on their intestine for further digestion of hard plant
tissues
-they also have gizzards that breaks down too
extremeties don't freeze
-less body heat is lost, can be bypassed in summer
(ex: duck's feet, beaver's tails)
Give this one a try later!
Solutions to Sub-zero Temps:Rete Mirabile/Wonderful Net
,aggressive group defence that pheremones summon the troops and gets all the
members to release these attack pheremones to warn them of danger
ex. wasps (yellow jackets)
Give this one a try later!
Attack Pheromones
-huge eyes
-lots of rods
-less precise vision but more sensitive to shapes and movement
-flat face with eyes on the front
-can move 270 degrees to see behind it in its blind spot
Give this one a try later!
Owls (nocturnal version of hawks)
Gray tree frog= can change colour to match the background
Give this one a try later!
Bark Mimic
ex: beaver tail slap
Give this one a try later!
, Startle sound
Iridescent layer found in nocturnal animals for maximizing vision under low intensity
light
Give this one a try later!
tapetum lucidum
A kind of panting that better exposes the Jacobson's organ
(ex: foxes)
Give this one a try later!
flemen
most songbirds migrate only at night because food is available during the daytime
and there are fewer predators at night (calmer, cooler and safer at night)
Give this one a try later!
Migrating at Night
ex. woodpeckers stay in cavities overnight inside trees
ex. small owls go inside cavities
ex. chickadees
, ex. flying squirrels huddle together in cavities
ex. racoons=use cavities and huddle
Give this one a try later!
Sleeping in Sub-Zero Temps: Cavities
ex. chickadees
-can lower their internal body core temp dramatically by 12 degrees on a cold night
-go into deep sleep called topor which takes less energy to replace body heat being
lost from the body
Give this one a try later!
Sleeping in Sub-Zero Temps: Topor
dams block water in a stream to make a pond
-add mud for insulation
Give this one a try later!
Sleeping in Sub-Zero Temps: Dams
have a long extension off the intestines where bacteria reside to breakdown plant
tissues that are hard to break down internally
ex. ruffed grouse= have caeca on their intestine for further digestion of hard plant
tissues
-they also have gizzards that breaks down too
