Sardine Ball
Clupeidae
A silver swirl that makes predators dizzy.
A sardine ball is a tightly packed school of small, silvery fishes that turns almost like one giant animal. Sardine is a shared name for several members of the herring family, so this SeaPals creature represents the whole group.
Find this SeaPal in the card gallery
From field guide to game table
Bring this Sardine Ball home
See which ready-to-play decks feature this SeaPal. Try one in the simulator before you buy, or explore each full deck list.
- 7 copies
Ready-to-play deck
Open Ocean Deck
Includes 7 cards featuring Sardine Ball across 3 card versions.
Quick dive
Creature passport
- Home
- Sardines gather in plankton-rich coastal and open waters around the world.
- Favorite foods
- They eat tiny plankton, including drifting animals and microscopic algae.
- Size check
- Usually 6-12 in (15-30 cm)—about ruler length
Tell-your-friends facts
Four wonderfully wild things
- 1
Each fish follows nearby neighbors rather than a single school leader.
- 2
A dark back and pale belly camouflage sardines from above and below.
- 3
Sardines are important food for seabirds, marine mammals, and larger fishes.
- 4
Their lateral-line sensors detect vibrations and nearby movement in the water.
Ocean superpower
Built to be amazing
Thousands of neighbors can turn together in an instant and confuse attackers.
Junior scientist tip
What should I look for?
Watch for a flashing silver cloud that ripples and changes shape.
Grown-up research links
We used trusted science organizations to check this profile.