Common bottlenose dolphin

Tursiops truncatus Today, 3 October

JanFebMarAprMayJunJulAugSepOctNovDec

now raising young 7 days

raising young Mammal here all year

The whole year

25 May – 10 October

the coastal calendar, shifted 10 days later for this region

Sitting the year outGetting readyYoung aboutYoung leaving

Where to look

Channels between the islands, most often in the two hours after sunrise.

Worth knowing

Twelve-month gestation means calving and mating overlap in the same summer, which is why the phases below cross. A calf stays with its mother three to six years — far longer than anything else on this page.

Look it up

photos, sightings and recordings, off this site

iNaturalist — photos and where people are seeing it Wikipedia — Tursiops truncatus

Regions

where this species is on the list

Dalmatian coastKvarner and IstriaVelebit and the DinaridesSlavonia and the Pannonian plainTukhlia, Ukrainian Carpathians

Phase by phase

dates as they fall in the region chosen above

Phase	When	Length	What it means
going about the year	11 December – 10 April	121 days	Feeding, holding territory, doing nothing the calendar singles out.
courting	11 April – 24 May	44 days	Song, display, fighting, scent-marking — pairs forming or reaffirming. Gestation runs a full year, so pregnancy is not a season here — it is most of the year.
raising young	25 May – 10 October	139 days	Dependent young in the nest, den or burrow, being fed.
young out of the den	11 October – 10 December	61 days	Young out of the nest or den, but still fed and followed by the adults.

Other mammals in this region

Beech martenBrown bearEdible dormouseEurasian lynxEuropean badgerEuropean hareGolden jackalLesser horseshoe batNorthern white-breasted hedgehogRed deerRed foxRoe deerWild boar

← All species