with their independently rotating eyes color change abilities their pincer-like
color change abilities their pincer-like
color change abilities their pincer-like feet their long tongue that they project
feet their long tongue that they project
feet their long tongue that they project out of their mouth and their slow
out of their mouth and their slow
out of their mouth and their slow deliberate movements chameleons are
deliberate movements chameleons are
deliberate movements chameleons are animals that most people would regard as
animals that most people would regard as
animals that most people would regard as highly charismatic one of the Centers of
highly charismatic one of the Centers of
highly charismatic one of the Centers of chameleon diversity is Madagascar and of
chameleon diversity is Madagascar and of
chameleon diversity is Madagascar and of the 202 chameleon species that are
the 202 chameleon species that are
the 202 chameleon species that are currently described to science 42% occur
currently described to science 42% occur
currently described to science 42% occur on Madagascar one of the old theories as
on Madagascar one of the old theories as
on Madagascar one of the old theories as to why chameleons change color was that
to why chameleons change color was that
to why chameleons change color was that they were changing color to match their
they were changing color to match their
they were changing color to match their background but what we now know is that
background but what we now know is that
background but what we now know is that it’s actually a communication strategy
it’s actually a communication strategy
it’s actually a communication strategy male-male combat will elicit some of the
male-male combat will elicit some of the
male-male combat will elicit some of the most impressive colorations from males
most impressive colorations from males
most impressive colorations from males from females on the other hand if a
from females on the other hand if a
from females on the other hand if a female is gravid or she has eggs and is
female is gravid or she has eggs and is
female is gravid or she has eggs and is not interested in breeding if a male
not interested in breeding if a male
not interested in breeding if a male starts to train quarter she will display
starts to train quarter she will display
starts to train quarter she will display some very intense vibrant colorations to
some very intense vibrant colorations to
some very intense vibrant colorations to let them male know that she’s not
let them male know that she’s not
let them male know that she’s not interested in 2015 scientists have
interested in 2015 scientists have
interested in 2015 scientists have discovered that the superficial layer of
discovered that the superficial layer of
discovered that the superficial layer of chameleon skin has pigments in it and
chameleon skin has pigments in it and
chameleon skin has pigments in it and under that there are cells with small
under that there are cells with small
under that there are cells with small guanine crystals chameleons change color
guanine crystals chameleons change color
guanine crystals chameleons change color by actively tuning these basing between
by actively tuning these basing between
by actively tuning these basing between these guanine crystals and what that
these guanine crystals and what that
these guanine crystals and what that does is it changes the wavelength of
does is it changes the wavelength of
does is it changes the wavelength of light that is reflected off of those
light that is reflected off of those
light that is reflected off of those crystals and thereby changes the hue or
crystals and thereby changes the hue or
crystals and thereby changes the hue or the color of the chameleons now
the color of the chameleons now
the color of the chameleons now chameleons have always been considered a
chameleons have always been considered a
chameleons have always been considered a master of camouflage now some of that is
master of camouflage now some of that is
master of camouflage now some of that is actually behavioural when chameleons are
actually behavioural when chameleons are
actually behavioural when chameleons are moving in the branches or moving along
moving in the branches or moving along
moving in the branches or moving along the ground they do a very characteristic
the ground they do a very characteristic
the ground they do a very characteristic back-and-forth motion and what they’re
back-and-forth motion and what they’re
back-and-forth motion and what they’re actually doing is mimicking a leaf or a
actually doing is mimicking a leaf or a
actually doing is mimicking a leaf or a branch in the wind and trying to break
branch in the wind and trying to break
branch in the wind and trying to break up a typical movement pattern of an
up a typical movement pattern of an
up a typical movement pattern of an animal running from a predator the
animal running from a predator the
animal running from a predator the chameleons tongue is actually a highly
chameleons tongue is actually a highly
chameleons tongue is actually a highly complex array of bone elastic elements
complex array of bone elastic elements
complex array of bone elastic elements and muscle chameleons can project their
and muscle chameleons can project their
and muscle chameleons can project their tongues up to two body lengths from
tongues up to two body lengths from
tongues up to two body lengths from their mouth
their mouth
their mouth now this is done at speeds of about 5.8
now this is done at speeds of about 5.8
now this is done at speeds of about 5.8 m/s or about 13 miles an hour Tong
m/s or about 13 miles an hour Tong
m/s or about 13 miles an hour Tong projection and chameleons is similar in
projection and chameleons is similar in
projection and chameleons is similar in a lot of ways to a bow and arrow before
a lot of ways to a bow and arrow before
a lot of ways to a bow and arrow before the tongue is actually launched or the
the tongue is actually launched or the
the tongue is actually launched or the arrow muscle action loads elastic
arrow muscle action loads elastic
arrow muscle action loads elastic elements and so in a bow and arrow
elements and so in a bow and arrow
elements and so in a bow and arrow that’s when the arm actually pulls the
that’s when the arm actually pulls the
that’s when the arm actually pulls the bow back tongue launch is initiated by
bow back tongue launch is initiated by
bow back tongue launch is initiated by the recoil of those elastic elements
the recoil of those elastic elements
the recoil of those elastic elements that were loaded by the muscle action or
that were loaded by the muscle action or
that were loaded by the muscle action or the release of the bow in the bow and
the release of the bow in the bow and
the release of the bow in the bow and arrow model and it’s the recoil of those
arrow model and it’s the recoil of those
arrow model and it’s the recoil of those lastic tissues or that bow that causes
lastic tissues or that bow that causes
lastic tissues or that bow that causes the launch of the tongue or the arrow in
the launch of the tongue or the arrow in
the launch of the tongue or the arrow in the bow and arrow example 36% of million
the bow and arrow example 36% of million
the bow and arrow example 36% of million species are threatened with extinction
species are threatened with extinction
species are threatened with extinction there are nine species which are
there are nine species which are
there are nine species which are regarded as critically endangered and 37
regarded as critically endangered and 37
regarded as critically endangered and 37 species that are regarded as endangered
species that are regarded as endangered
species that are regarded as endangered the main threats to chameleons in the
the main threats to chameleons in the
the main threats to chameleons in the wild is actually habitat alteration and
wild is actually habitat alteration and
wild is actually habitat alteration and deforestation because some chameleons
deforestation because some chameleons
deforestation because some chameleons are found only in a specific type of
are found only in a specific type of
are found only in a specific type of habitat on a single mountain this makes
habitat on a single mountain this makes
habitat on a single mountain this makes them highly range restricted but when
them highly range restricted but when
them highly range restricted but when that range restriction is combined with
that range restriction is combined with
that range restriction is combined with other pressures on their habitat a lot
other pressures on their habitat a lot
other pressures on their habitat a lot of these species become endangered
of these species become endangered
of these species become endangered chameleons have fascinated scientists
chameleons have fascinated scientists
chameleons have fascinated scientists and naturalist for centuries it’s
and naturalist for centuries it’s
and naturalist for centuries it’s something that we’re still learning a
something that we’re still learning a
something that we’re still learning a lot about
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