naturebriefs
10:31in productionCh. 1 · Where it swims/ 10:31 · ceiling 15 min
Fish & sea life · Migration

Great white shark

A cold-water-capable apex predator that migrates across oceans—not to wander, but to hunt seals where they gather.

Great white shark

Chapters & takeaways6
  1. 1:16
    Where it swims

    It lives where the water is warm to temperate—and clusters off North America, southern Africa and Oceania.

  2. 2:33
    How far it goes

    It crosses continents—not as a fluke, but as routine movement between coast and open ocean.

  3. 3:38
    What it eats

    Its 300 serrated teeth are built for marine mammals—not just fish.

  4. 4:50
    How it stays ready

    Its liver floats it; its warmth lets it strike in cold water.

  5. 5:54
    How big it really is

    It is large—but not the largest shark alive.

  6. 6:45
    Where it’s disappearing

    Its vulnerability is regional: critical in Europe and the Mediterranean, globally vulnerable.

Worth your time?

Yes. See the whole thing.

4.5/ 5
What works
  • It gets migration right: it travels between coasts and open ocean, across continents.
  • It gets thermal strategy right: partial warm-bloodedness enables cold-water activity.
  • It gets feeding ecology right: marine mammals are confirmed prey.
What does not
  • It does not stay in one place.
  • It does not dominate all ocean zones.
  • It does not rely solely on sight or smell—though the document says nothing about sensory use.
See it if
  • Marine biologists tracking migrations.
  • Conservationists assessing IUCN Vulnerable status.
  • Coastal observers in North America, southern Africa or Oceania.
Skip it if
  • Freshwater divers.
  • Arctic researchers.
  • Anyone expecting static behaviour or localised residency.
The written brief1 min read

What the species is and where it came from

The great white shark is the sole extant species of Carcharodon, a lamniform shark native to tropical and temperate oceans worldwide. It is not endemic to any single sea or coast.

How it works, in terms someone would actually use

It swims vast distances across oceans, moving between coasts and open water, even crossing continents. Its liver holds over a quarter of its body weight to float and fuel long journeys. Its 300 serrated teeth cut through seals, dolphins, squid, fish and other sharks. Regional endothermy lets it hunt in cold water where prey is abundant.

What it gets right

It gets migration right: it travels between coasts and open ocean, across continents. It gets thermal strategy right: partial warm-bloodedness enables cold-water activity. It gets feeding ecology right: marine mammals are confirmed prey, not speculation.

What it does not

It does not stay in one place. It does not rely solely on sight or smell—it uses multiple senses, but the document says nothing about how. It does not dominate all ocean zones: it avoids polar waters and is regionally critical in European and Mediterranean waters.

What it changed

It changed how we understand shark physiology: regional endothermy, massive energy-storing livers and continuous tooth replacement are now benchmarks for predatory adaptation in elasmobranchs.

Who it is for, and who it is not

It is for marine biologists tracking migrations, conservationists assessing IUCN Vulnerable status, and coastal observers in North America, southern Africa or Oceania. It is not for freshwater divers, Arctic researchers, or anyone expecting static behaviour or localised residency.

Is it worth your time

Yes—if you are near temperate or tropical coastlines in North America, southern Africa or Oceania, and want to witness a highly migratory apex predator that reshapes marine food webs by direct predation on marine mammals.

Same habitat · Fish & sea life4 of 43
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