Home › Mammalia › Delphinidae › Atlantic Bottlenose Dolphin (Tursiops truncatus)
SPECIES PROFILE
Atlantic Bottlenose Dolphin (Tursiops truncatus)
Tursiops
IUCN STATUS
Least Concern
CONSERVATION STATUS
Least Concern
CLASS
Mammalia
GEOGRAPHICAL RANGE
Worldwide in tropical, subtropical, and temperate oceans; one of the most widespread marine mammals.
DIET
Carnivore
HABITAT
Coastal bays, open ocean, estuaries, and deep-water environments; Bahamas population is one of the most studied in the world.
🔬 Classification
PHYLUM
Chordata
CLASS
Mammalia
ORDER
Cetacea
FAMILY
Delphinidae
GENUS
Tursiops
📋 Description
SIZE
Medium cetacean 2–4 m; weighs 150–650 kg; robust build with a distinctive short beak.
COLORATION
Dark grey dorsally fading through pale grey sides to white-pink underparts; curved dorsal fin; permanent "smile" from jaw curvature.
ADAPTATIONS
Echolocation (up to 200 kHz clicks) for hunting in turbid water; sophisticated social intelligence; signature whistles for individual ID.
🌿 Ecology
HABITAT
Coastal bays, open ocean, estuaries, and deep-water environments; Bahamas population is one of the most studied in the world.
DIET
Carnivore
GEOGRAPHIC RANGE
Worldwide in tropical, subtropical, and temperate oceans; one of the most widespread marine mammals.
REPRODUCTION
Single calf after ~12 month gestation; nursing for 3–6 years; strong mother-calf bond; calf learns from mother for a decade.
DIET DETAILS
Fish, squid, and crustaceans; uses echolocation to detect prey; cooperative herding techniques concentrate schooling fish.
⚠️ Threats & Conservation
PRIMARY THREATS
Bycatch in fishing nets, boat strikes, marine noise pollution, and captivity for entertainment; Bahamas wild populations are healthy.
💡 Interesting Facts
1
Wild Atlantic Spotted and Bottlenose Dolphins near Bimini have been voluntarily interacting with divers for 30+ years.
2
Each dolphin has a unique signature whistle used as a name — individuals answer to their own whistle played back by researchers.
🔭 Sighting Guide
📍 BEST PLACES TO SIGHT
Bimini Island waters, Bahamas — the longest-running wild dolphin interaction study in the world; daily boat encounters.
Nassau Harbour area, Bahamas — resident Bottlenose Dolphin pods regularly bowride on local dive and snorkel boats.
Exuma Cays Land and Sea Park, Bahamas — pristine waters with resident Bottlenose Dolphins in remote unpressured habitat.
🗓️ BEST TIME TO SIGHT
Book the "Swimming with Dolphins" boat trip from Bimini or Nassau; dolphins approach boats voluntarily and interactions are non-baited.
🎯 SIGHTING TIPS
Year-round; calmer summer months June–September offer best snorkelling conditions for in-water dolphin encounters.
