We've already explored the secret life of puppies and of eggs on Irish farms. Now it's time to turn our attention to an animal whose a lover and a fighter, and whose amorous antics keep cattle numbers in check. The bull is a very important part of farm life.

He has one vital job - reproduction. 

Easily recognised by the ring in his nose, these animals are bigger and more aggressive than females of the species, with thick bones, large muscular neck and a mane of curly hair on their head.

The bull in question on Big Week on the Farm is 18 months old and has reached sexual maturity. We're about to see him introduced to the cows for the very first time.

The birds, bees and...cows
A cow is only fertile one day every three weeks. So timing is everything. The cows in the report are coming into heat. For his grand entrance, the bull bellows to announce his arrival. The cows approach, curious. The bull sniffs the pheromones of the cows to see if they are receptive to mating.

Even with the bull in the field though, cows may still mount each other and sometimes block off the bull from mating down to jealousy.

In the below report, Áine was joined by Laura Boyle, an animal behaviourist to talk more about the Secret Lives of Bulls.

Want to learn about more animals on the farm? Try the Secret life of:

Watch the report below from RTÉ Player, or if on mobile click here.

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The end result? Áine Lawlor played a blinder delivering this baby cow live on air:

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The final episode of Big Week on the Farm starts from 7pm on RTÉ One with presenter Vogue Williams.

The Ray D'Arcy Show on RTÉ Radio 1 will be doing daily updates on the show every day next week.

If you miss any of the live shows, you can catch-up on the RTÉ Player.

Big Week on the Farm is co-funded with RTÉ by Science Foundation Ireland. Science and technology are increasingly part of modern farming and food production.