ARKive - Sei whale - Balaenoptera borealis- species related by location

Species that have a similar geographic range to the Sei whale (Balaenoptera borealis)

Fin whale (Balaenoptera physalus)
Fin whales are the fastest of all cetaceans, reaching speeds of 37 kilometres per hour and known to completely clear the water. This whale... More 32 Images 2 Videos
Orca (Orcinus orca)
Also known as the killer whale, the orca (Orcinus orca) is the largest member of the dolphin family, and one of the most distinctive of all... More 50 Images 1 Video
Humpback whale (Megaptera novaeangliae)
The magnificent humpback whale (Megaptera novaeangliae) is renowned for its impressive leaping displays and for the mysterious 'singing' of... More 57 Images 15 Videos
Sperm whale (Physeter macrocephalus)
The sperm whale (Physeter macrocephalus) is the largest of the toothed whales, with males growing up to 20 metres in length. The sperm whale... More 45 Images 14 Videos
Wandering glider (Pantala flavescens)
Information on the wandering glider is currently being researched and written and will appear here shortly... More 3 Images 0 videos
Cuvier’s beaked whale (Ziphius cavirostris)
In 1823, after mistaking a fragment of skull for a fossil, the French naturalist Georges Cuvier described a seemingly extinct species of... More 8 Images 0 videos
Blue whale (Balaenoptera musculus)
The blue whale (Balaenoptera musculus) is the largest animal to have ever lived, being almost as big as a Boeing 737 and even larger than... More 52 Images 4 Videos
Risso's dolphin (Grampus griseus)
One of the most enigmatic cetaceans, this little-known dolphin has an unusual appearance. Unlike many other dolphins, Risso’s dolphin lacks... More 19 Images 1 Video
False killer whale (Pseudorca crassidens)
Despite its name, the false killer whale is not a close relative of the killer whale (Orcinus orca), and, in fact, any resemblance between... More 16 Images 0 videos
Bottlenose dolphin (Tursiops truncatus)
The bottlenose dolphin (Tursiops truncatus) is one of the most well-known species of dolphin. There appear to be two main varieties; a... More 49 Images 2 Videos
Striped dolphin (Stenella coeruleoalba)
With the classic dolphin shape, the striped dolphin’s most remarkable feature is the distinctive pattern of blue and white stripes along the... More 14 Images 1 Video
Pygmy sperm whale (Kogia breviceps)
Information on the pygmy sperm whale is currently being researched and written and will appear here shortly... More 7 Images 0 videos
Shortfin mako (Isurus oxyrinchus)
The shortfin mako (Isurus oxyrinchus) is believed to be the fastest-swimming of all sharks, thought to be capable of attaining bursts of... More 15 Images 4 Videos
Short-finned pilot whale (Globicephala macrorhynchus)
The short-finned pilot whale (Globicephala macrorhynchus) is relatively large member of the dolphin family (Delphinidae), and is known for... More 26 Images 2 Videos
Dwarf sperm whale (Kogia sima)
Information on the dwarf sperm whale is currently being researched and written and will appear here shortly... More 5 Images 0 videos
Blainville’s beaked whale (Mesoplodon densirostris)
A particularly easy species to identify, Blainville’s beaked whale has two distinctive horn-like teeth that grow from bulges in the lower... More 4 Images 0 videos
Rough-toothed dolphin (Steno bredanensis)
With a head that slopes smoothly down into a long beak, and large flippers that are set fairly far back on the body, this rather... More 21 Images 1 Video
Blue shark (Prionace glauca)
The blue shark (Prionace glauca) is easily identified by its beautifully coloured slender body, which is a deep indigo-blue across the back... More 16 Images 5 Videos
Short-beaked common dolphin (Delphinus delphis)
The short-beaked common dolphin (Delphinus delphis) is the commonest dolphin species, but exact numbers are unknown. It is easily identified... More 39 Images 2 Videos
Common minke whale (Balaenoptera acutorostrata)
The smallest of the rorqual whales, the common minke whale (Balaenoptera acutorostrata) is also the most abundant. The common minke whale is... More 19 Images 1 Video
Bryde’s whale (Balaenoptera edeni)
Pronounced “broo-dess”, the Bryde’s whale is named after Johan Bryde, who helped construct the first South African whaling factory in the... More 19 Images 1 Video
Thresher shark (Alopias vulpinus)
With their enormous, curving upper lobe of the tail fin, which can be as long as the body, thresher sharks (Alopias vulpinus) are one of the... More 3 Images 1 Video
Albacore tuna (Thunnus alalunga)
The large, oceanic albacore tuna (Thunnus alalunga) is built for speed, with a torpedo-shaped body, smooth skin and streamlined fins... More 1 Image 0 videos
Spinner dolphin (Stenella longirostris)
The acrobatic spinner dolphin is the most common small cetacean in many tropical open seas, where it can be seen spinning high in the air... More 24 Images 6 Videos
Yellowfin tuna (Thunnus albacares)
The yellowfin tuna (Thunnus albacares) is a fish built for speed and endurance. Its streamlined body is metallic dark blue on the back... More 16 Images 3 Videos
Oceanic whitetip shark (Carcharhinus longimanus)
Considered one of the five most dangerous sharks in the world, the oceanic whitetip shark has a stocky build, a short, bluntly-rounded snout... More 18 Images 1 Video
Nut-grass (Cyperus rotundus)
The nut-grass (Cyperus rotundus) is a slender, erect, perennial sedge which spreads by means of a fibrous root system. Its slender... More 10 Images 0 videos
Bigeye tuna (Thunnus obesus)
This large, fast-swimming tuna is an important target for numerous commercial fisheries around the world. The streamlined body of the bigeye... More 2 Images 0 videos
Swordfish (Xiphias gladius)
A fast-swimming predator, the swordfish (Xiphias gladius) gets its name from its extremely long, flat, sword-like bill, which is... More 6 Images 0 videos
Melon-headed whale (Peponocephala electra)
The melon-headed whale (Peponocephala electra) is a member of a group of small, dark-coloured whales often referred to as ‘blackfish’. As... More 10 Images 0 videos

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