Oxpecker birds get a good meal by eating the ticks found on a rhinocerous.
Mutualism
15
A lion hunting and eating a gazelle.
Predator and Prey
15
Leeches on a person
Parasitism
25
A tick living on a dog
Parasitism
10
Mistletoe putting its roots into a host tree. The mistletoe grows while the host tree dies.
Parasitism
10
A wolf hunting and eating a beaver.
Predator and Prey
25
A cleaner fish cleaning the mouth of another fish. The cleaner fish gets lunch and the the other fish gets clean teeth!
Mutualism
10
Tapeworms infect the liver of a dog. The tapeworm gets the nutrients from the dog and the dog gets sick.
Parasitism
15
A cattle egret eats the bugs raised from cattle walking through a field. The bird gets a snack and the cattle doesn't care one way or another.
Commensalism
20
Bees pollinate flowers and flower are food for bees. Everyone is happy!
Mutualism
25
A bird builds his nest in a tree. The bird gets a happy home and the tree doesn't notice.
Commensalism
10
A spider uses a tree to build its web. The spider gets a home and the tree doesn't notice the spider or the web.
Commensalism
20
Mosquitoes feed on humans. The mosquitoes get the blood and the human gets nasty bites.
Parasitism
10
Head lice living on human scalps. The lice suck the blood and the human gets little bites.
Parasitism
15
A hermit crab uses the shell of another animal which has died for his new home.
Commensalism
15
Yucca Flowers are pollinated by yucca moths who then lay their eggs in yucca flowers. The moths get a place to lay their eggs and the flowers get pollinated.