Animal suicide: https://en.wikipedia.org/wiki/Animal_suicide

Apparatjik: https://en.wikipedia.org/wiki/Apparatjik

Backmasking: https://en.wikipedia.org/wiki/Backmasking

Baryon asymmetry: https://en.wikipedia.org/wiki/Baryon_asymmetry

Brandolini's law: https://en.wikipedia.org/wiki/Brandolini%27s_law

Bustrophedon: https://en.wikipedia.org/wiki/Boustrophedon

Chemical clock: https://en.wikipedia.org/wiki/Chemical_clock

Comprachicos: https://en.wikipedia.org/wiki/Comprachicos

Death-activated genes: https://en.wikipedia.org/wiki/Thanatotranscriptome

Diving horse: https://en.wikipedia.org/wiki/Diving_horse

Hypnopompia/hypnagogia: https://en.wikipedia.org/wiki/Hypnopompia

Khecarī mudrā: https://en.wikipedia.org/wiki/Khecarī_mudrā

Kleptoplasty: https://en.wikipedia.org/wiki/Kleptoplasty

Kowloon Walled City: https://en.wikipedia.org/wiki/Kowloon_Walled_City

Magnetoreception: https://en.wikipedia.org/wiki/Magnetoreception

Microchimerism: https://en.wikipedia.org/wiki/Microchimerism

Molyneux’s problem: https://en.wikipedia.org/wiki/Molyneux%27s_problem

Monte Carlo Method: https://en.wikipedia.org/wiki/Monte_Carlo_method

Oklo: https://en.wikipedia.org/wiki/Oklo

Prion: https://en.wikipedia.org/wiki/Prion

Situs inversus: https://en.wikipedia.org/wiki/Situs_inversus

Star Jelly: https://en.wikipedia.org/wiki/Star_jelly

Treppaning: https://en.wikipedia.org/wiki/Trepanning

Tulpa: https://en.wikipedia.org/wiki/Tulpa

Works based on dreams: https://en.wikipedia.org/wiki/Works_based_on_dreams