Side by Side

1. Vaquita

   Phocoena sinus up to 1.5 m · up to 54 kg Read the lesson →
   1.5 m

2. Harbor porpoise

   Phocoena phocoena up to 1.7 m · up to 77 kg Read the lesson →
   1.7 m

3. You

   An adult, about 1.8 m tall
   1.8 m

4. Amazon river dolphin

   Inia geoffrensis up to 2.55 m · up to 207 kg Read the lesson →
   2.55 m

5. Bottlenose dolphin

   Tursiops truncatus up to 4 m · up to 635 kg Read the lesson →
   4 m

6. Narwhal

   Monodon monoceros up to 4.6 m · up to 1,645 kgplus a tusk of up to 3 m
   4.6 m

7. Cuvier’s beaked whale

   Ziphius cavirostris up to 7 m · up to 3.1 tonnes Read the lesson →
   7 m

8. Long-finned pilot whale

   Globicephala melas up to 7.6 m · up to 2.3 tonnes Read the lesson →
   7.6 m

9. Orca

   Orcinus orca up to 9.8 m · up to 10 tonnes Read the lesson →
   9.8 m

10. A city bus

    About 12 m long
    12 m

11. Gray whale

    Eschrichtius robustus up to 14.9 m · about 41 tonnes Read the lesson →
    14.9 m

12. North Atlantic right whale

    Eubalaena glacialis up to 15.8 m · up to 64 tonnes Read the lesson →
    15.8 m

13. Sperm whale

    Physeter macrocephalus up to 18 m · up to 41 tonnesmales; females reach about 12 m Read the lesson →
    18 m

14. Humpback whale

    Megaptera novaeangliae up to 18.3 m · about 36 tonnes Read the lesson →
    18.3 m

15. Bowhead whale

    Balaena mysticetus up to 18.9 m · up to 91 tonnes Read the lesson →
    18.9 m

16. Blue whale

    Balaenoptera musculus up to 32 m · up to 170 tonnes Read the lesson →
    32 m

Maximum lengths and weights: NOAA Fisheries species pages · Handbook of the Mammals of the World · NAMMCO and the Norwegian Polar Institute. Silhouettes are simplified drawings, made for this course. All sources →