Observe a cuttlefish changing its colour as it swims near the Great Barrier Reef, off the coast of Australia
A cuttlefish changing colour as it swims near the Great Barrier Reef, off the northeastern coast of Australia.
© Fun Travel TV (A Britannica Publishing Partner)
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Encyclopædia Britannica, Inc.Two people making change for five dollars as a representation of how matter is conserved in a chemical reaction.
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NASA/JPLVoyager 2 arriving at Neptune after a 12-year journey, August 25, 1989.
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Encyclopædia Britannica, Inc.This fruit was a favorite of George Washington—but has been largely forgotten.
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© Massachusetts Institute of Technology (A Britannica Publishing Partner)Learn about the optical structures that give the blue-rayed limpet (Patella pellucida) its brilliant blue stripes.
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Encyclopædia Britannica, Inc.Contrary to popular belief, chameleons don't actually change color to blend into their background.
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Encyclopædia Britannica, Inc.Learn how the corals of the Great Barrier Reef reproduce.
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© Fun Travel TV (A Britannica Publishing Partner)A ray swimming near the Great Barrier Reef off the coast of Queensland, Australia.
News •
Reefs' new name echoes the legacy of the 'Bingil Bay Bastard'
• Nov. 6, 2026, 3:00 PM ET (ABC News (Australia))
Climate change is killing the plants of Uluṟu‑Kata Tjuṯa: Aṉangu traditional owners are concerned
• Nov. 1, 2026, 5:00 PM ET (Phys.org)
One giant clam contains a month‑by‑month diary of the Great Barrier Reef’s climate 200 years ago
• Oct. 23, 2026, 11:30 AM ET (The Weather Channel)
Nearly All of the World’s Shallow Coral Reefs Are Now Critically Endangered
• Oct. 22, 2026, 8:00 AM ET (New York Times)
During El Niño, a perfect storm of weather systems could spell disaster for the Great Barrier Reef
• Oct. 17, 2026, 7:00 AM ET (Phys.org)
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