![Fin whale (Balaenoptera physalus) Fin whale (Balaenoptera physalus)](/sites/default/files/styles/hero_s/public/2020-02/whale.jpg?h=13eb700e&itok=p0gbYY9M)
© F. Bassemayousse / WWF France
Top 10 facts about whales
![](/sites/default/files/styles/max_650x650/public/2019-04/humpback-whale.jpg?itok=I5hAd3vi)
© John Van Den Hende
![Humpback Whale breaching in Juneau, Alaska, United States](/sites/default/files/styles/max_650x650/public/2018-08/Large_WW1113667%20%281%29_0.jpg?itok=veXIeQfd)
© Jeff Duerr
![Sperm whale (Physeter catodon) off the coast of the Azores.](/sites/default/files/styles/max_650x650/public/2020-02/sperm_whale.jpg?itok=PMvzX8Nn)
© Brian J. Skerry / National Geographic Stock / WWF
![A pod of Humpback whales (Megaptera novaeangliae) bubble-net feeding in Whale Channel, British Columbia, Canada](/sites/default/files/styles/max_650x650/public/2020-02/humpback_whales.jpg?itok=lUjn4cA5)
© Tim Irvin / WWF-Canada
![A blue whale ( Balaenoptera musculus )](/sites/default/files/styles/max_650x650/public/2020-02/blue_whale.jpg?itok=gBgjiAh3)
© Richard Barrett / WWF-UK
![Humpback whale, Megaptera novaeangliae, male with tail trapped in net, and unable to swim.](/sites/default/files/styles/max_650x650/public/2020-02/humpback_whale.jpg?itok=K-P3epy0)
© William W. Rossiter / WWF
![](/sites/default/files/styles/max_650x650/public/2019-04/A-pod-of-male-narwhals.jpg?itok=qMUsid5o)
© Paul Nicklen/National Geographic Stock / WWF-Canada
![Narwhals swimming together](/sites/default/files/styles/max_650x650/public/2019-04/narwhal-swimming-together.jpg?itok=4cmLW6V7)
© Paul Nicklen / National Geographic Creative / WWF-Canada
![Pygmy blue whale (Balaenoptera musculus brevicauda) subspecies of blue whale](/sites/default/files/styles/max_650x650/public/2020-02/pygmy_blue_whale.jpg?itok=xeMDD26N)
© naturepl.com / Franco Banfi / WWF
![Three killer whales (Orcinus orca)](/sites/default/files/styles/max_650x650/public/2020-02/killer_whales.jpg?itok=A0L9iCYl)
© National Geographic Creative / Ralph Lee Hopkins / WWF