It is cold and there is snow, fog or mist in many parts of the world. Smile when you read this.

There is a monogamy league table. Monogamy means being in a relationship with one other person only.

I want to share with you the most monogamous species. These species show the highest rate of full siblings, indicating strong trends towards exclusive mating.

California Deer mouse 100%.
African Wild Dog 85%.
Damaraland Mole Rat 80%.
Moustachached Tamarin 78%.
Ethiopian Wolf 77%.
Eurasian Beaver 73%.
Humans 66%.

Least Monogamous

Rheas Macaque 1.1%.
Soay Sheep 0.5%.
Celebes Crested Macaque 0.05%.

Figures have been rounded off: University of Cambridge.

Aim Hrim Klim

Picture by AfricanConservation – Own work, from Working with Wildlife, CC BY-SA 4.0, Link