There is just one native terrestrial reptile in Northern Ireland, the viviparous lizard, which is widely distributed, particularly in heaths, bogs and sand dunes, but little information is recorded.

Another significant aspect of viviparity evolution is the examination of transitional forms of pregnancy, particularly in certain lizard species that exhibit variations in reproductive modes.

Another study investigated the reproductive strategies of a lizard community in the arid ... with oviparous species generally being larger than viviparous ones. Interestingly, the study also ...