A food chain enables animals to communicate to each other within their environment.
Otter
Fish
Whiptail lizard
Mosquito
Composter
Producer
Decomposer
Bog
Zooplankton
Kelp
Phytoplankton
Reeds
Curved lake
Oxbow lake
Elbow lake
Convex lake
Sight
Olfaction
Breathing
Hearing
Tributary
Haboob
Watershed
Wetland
Pond
All of the above
River
Beta predator
Alpha predator
Omega predator
Top dog