Orca
Orcinus orca
Transient "Bigg's" orcas occasionally pass through SoCal hunting common dolphins. Sightings are rare but unforgettable.
Scale
Shorter than a single school bus — about 69% of its length.
A orca runs about 27 ft. Lined up against a school bus everyone already has a mental ruler for, each one 39.3 ft per the manufacturer's own spec sheet.
School bus: 39.3 ft (472 in), Blue Bird Vision 72-passenger conventional bus, manufacturer spec sheet.
Drawn to the same scale. 27 ÷ 39.3 ≈ 0.7.