Bull shark migrations
Heavyweights of warm coasts and river mouths — dense records around Fiji, Mexico, and Florida, much of it contributed by tagging science.
See bull shark dive sites · zoom in and select a glow to open that coast on the dive map
The bull shark year, in real records
Heavyweights of warm coasts and river mouths — dense records around Fiji, Mexico, and Florida, much of it contributed by tagging science. The map above animates 43,897 recorded observations of Carcharhinus leucas — CC0 and CC BY 4.0 records accessed through GBIF, binned by calendar month, peaking in January. Sightings are history, not a forecast: they show where people have actually seen this animal, which is strong planning context and never a guarantee.
Where the year peaks
The regions holding the most recorded bull shark sightings, and the months when each one runs hottest — computed from the same dataset the map animates.
- Eastern Australiayear-round33,504 sightingsdive sites here
- Southern AfricaDec–May7,095 sightingsdive sites here
- Baja & Pacific MexicoMay–Jun2,146 sightingsdive sites here