I'll show you how to horse box! Wild stallions square off in bloody fight for mating rights
This is the dramatic moment two proud stallions faced off in a bloody fight for dominance and mating rights in a herd of wild horses.
The Koniks, or Polish primitive horses, reared up on their hind legs with their teeth bared during the ferocious attack.
Photographer Henri Ton, 41, captured the fight over females at a nature reserve in Loevenstein, The Netherlands.
Stallions rear up on their hind legs as they fight for dominance in a herd of Koniks in The Netherlands
Fierce: One of the male horses lands a thudding blow with its hoof as the fight turns bloody
Mr Ton, who works as an electronic engineer, spends several hours a week observing the herd of 36 horses to better understand their behaviour.
He said: 'The Koniks were put in a nature reserve and left to fend for themselves.
'The public are told to keep their distance and not to feed them so they can remain wild.
'I go looking for them about once a week and have done for over a year now.
'I try to avoid attracting their attention so their behaviour in my pictures is as natural as possible.'
Dominance: Teeth bared, the two horses continue to fight as other members of the herd watch in the background
The battle among the Koniks, or Polish primitive horses, took place at a nature reserve in Loevenstein, The Netherlands
There is one lead stallion in the herd, which is the only male allowed to breed.
'Fights with the lead stallion can be very rough and if he is injured the other stallions try to take over.
'Sometimes it is playful, almost like an act or dance, but it can also be very aggressive with bloody injuries.
'The Konik horse is one of the few types of horses able to survive in the wild. They are wild but they have never been aggressive towards me.'