Chemical communication
Hannah Little
http://www.nhptv.org/natureworks/nwep3d.htm
Chemical communication is when other animals want to identify another animal or you a smell to find prey.Another way is they could mark their territory. Chemical communication can identify from scent and see if it's their family .Some chemical communication is to find a way or which way to go.
Heyssss theirssss
Snakes have a tongue that can smell when a predator comes. On the roof of their mouth, caused by having an Jacobson's organ.When a snake flicks it's tongue it's collecting chemicals from the environment.When the snake flicks its tongue it allows the snake to smell and to see what odor is coming from it's direction,it can track the prey and communicate with other snakes.
Pictures:http://www.google.com/search?q=snakes&safe=active&rlz=1CASMAE_enUS602US603&es_sm=93&source=lnms&tbm=isch&sa=X&ei=lU40VZjUI43VoAT21IGwCg&ved=0CAcQ_AUoAQ&biw=1055&bih=514&surl=1
This is my house
Cats uses chemical communication by their urine. When cats urine on things or places they are marking their territory.Also they are sending a message to cats nearby what is theirs.
sneaky, sneaky
When an ant is squashed it releases a different pheromone that warns the others of potential danger.On the tip of an ant antennae they are super sensitive, the antennae tells to go left or right. An ant antennae helps to see which are it's family member.
Stop buzzzzing
Bees have a reason to sting, the chemical that is put in an enemy is to alert the other bees from danger.So when one bee stings an enemy, other become in like a swarm of bees to protect one another.Killer bees are deadly, not from a chemical sting its because they have a lower threshold for alarm pheromone.