Apex Predator
noun /ˈeɪ.pɛks ˈprɛd.ə.tər/ — A predator at the top of a food chain, with no natural predators.
Definition
A predator at the top of a food chain that is not preyed upon by any other animal in its natural environment. Apex predators typically have an outsized effect on the ecosystem — their presence regulates populations below them.
Beyond the definition
The apex predator doesn't need to be large. The orca. The great white. The wolf. Their power is not just in their killing — it is in the fear they generate, which shapes how everything below them behaves, even when the predator is not present.
Origin & history
Latin: 'apex' (peak, tip) + 'praedator' (plunderer). The apex predator sits at the ecological summit — the top of the triangle through which energy flows upward.
Example sentences
Illustrative sentences for learning, not verified community posts or sourced quotations.
The reintroduction of wolves as apex predators transformed the rivers of Yellowstone — by changing where elk grazed.
Humans are the apex predator of the modern world, which may explain why we find the concept so fascinating.
She moved through the room with the unself-conscious ease of an apex predator.
How to use it
This entry uses a noun. Follow the examples for articles and singular or plural forms; not every noun takes “a” or “an.”
Choose “Apex Predator” when the meaning fits your context: A predator at the top of a food chain that is not preyed upon by any other animal in its natural environment. Apex predators typically have an outsized effect on the ecosystem — their presence regulates populations below them.
Synonyms
top predator, alpha predator, keystone predator
Antonyms
prey, herbivore
Related words
Apex Predator vs keystone species
An apex predator sits at the top of the food chain. A keystone species is defined by its disproportionate impact on the ecosystem, regardless of its position in the food chain.
Word in the Wild
See how this word appears in life, language and stories.
Illustrative sentences and imagined stories for learning — not verified sightings, interviews, or sourced quotations.
Illustrative example
Three Lions Resting in Pride
Three lions are resting together in a group, their forms blending as they lie in the grass, occupying a quiet, powerful presence.
The pride of lions acts as an apex predator group. Their presence in the ecosystem is regulatory, holding an outsized influence on their habitat because they are not preyed upon by any other species, effectively maintaining the balance of the community below them.
Image credit: Benh LIEU SONG · CC BY-SA 3.0 (license)
Resized and converted to WebP; displayed with a fitted crop.
Questions about this word
What does "Apex Predator" mean?
Apex Predator is noun meaning: A predator at the top of a food chain, with no natural predators.. A predator at the top of a food chain that is not preyed upon by any other animal in its natural environment. Apex predators typically have an outsized effect on the ecosystem — their presence regulates populations below them.
Where does the word "Apex Predator" come from?
Latin: 'apex' (peak, tip) + 'praedator' (plunderer). The apex predator sits at the ecological summit — the top of the triangle through which energy flows upward.