How many animals are born in the world every day?

Birds do it, bees do it, even educated fleas do it - well, maybe they don't fall in love but they do procreate, so can we estimate how many animals are born every day across the world?

First things first, what do we mean by the term "animal"? The Oxford English Dictionary defines an animal as "a living organism which feeds on organic matter, typically having specialised sense organs and nervous system and able to respond rapidly to stimuli".

So that's mammals and non-mammals, vertebrates and invertebrates, animals that hatch, and animals that have live births
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To give you some idea of the scale of the question and indeed the answer let's start with a creature that's notorious for its procreation prowess: the rabbit, of Bugs Bunny, Peter and Jessica fame.

Wildlife Britain estimates the breeding population of wild rabbits in the UK is 40 million. In the UK, a rabbit will typically produce up to seven litters each containing three to seven kittens.

If every female wild rabbit in the country had seven litters of, say, five kittens per litter there would be the equivalent of 1,917,808 rabbits born every day.