Hêng-ûi-ha̍k (Eng-gí: ethology), ha̍k-chiá tōng-bu̍t hêng-ûi (animal behaviour), sī choan-bûn ián-kiù tōng-bu̍t hêng-uî (iā ū kóng "hêng-tōng") ê tōng-bu̍t-ha̍k hak-kho. Hiān-tāi ê hêng-uî-ha̍k tāi-io̍k sī tuì 1930 nî-tāi Nikolaas Tinbergen kap Konrad Lorenz khai-sí. Chit-ê ha̍k-kho ê ián-kiù kap sim-lí-ha̍k chin ū kau-chhap.

Tinbergen hō͘ hêng-ûi-ha̍k-chiá ê 4-ê būn-tê

siu-kái

Chiam-tùi chit bûn ha̍k-būn, Tinbergen thê-chhut liáu 4 hāng būn-tê:

  • Kong-lêng (function): Hêng-ûi tùi tōng-bu̍t chûn-oa̍h kap seⁿ-thòaⁿ ê éng-hióng sī jû-hô? Ūi-siá tōng-but sī á-né ê hoán-èng, m̄-sī pa̍t khoán hoán-èng?
  • Goân-in (causation; in-kó): Sī siá-mi̍h chhì-kek ín-khí hoán-èng, i koh sī á-ná siū chòe-kīn ê ha̍k-si̍p lâi siu-kái?
  • Hoat-io̍k (development): Tùi teh nî-hòe hêng-ûi sī á-choán kái-piàn, jî-chhiá sī siá-mi̍h khoán ê chá-kî keng-giām tùi tōng-bu̍t tián-hiān hêng-ûi sī pì-iàu--ê?
  • Chìn-hòa ê le̍k-sú (evolutionary history): Hêng-ûi kap siong-koan bu̍t-chéng ê siong-sū hêng-ûi pí-kàu khí--lâi sī á-ná, i tī hun-hòa kòe-têng tiong koh khí-sian sī á-ná?