The Wildlife Heritage Foundation has released a video of its lions in a roaring competition at their Big Cat Sanctuary at Smarden in Kent.
The conservation group looks after more than 50 'big cats' at the sanctuary.
The video shows lions trying to defend their area of the site from approaching lions from another pride.
On one side of the site are Kafara, Manzi and Tiny, who are three brothers; while at another location on the site Themba, Joy and Sophia roar - warning the other lions to stay away from their cubs.
Lions at the Wildlife Heritage Foundation at Smarden in Kent have been trying to out roar each other. This video shows them trying to defend their area of the Big Cat sanctuary from approaching lions from another pride.
On one side of the site are Kafara, Manzi and Tiny, the three brothers; while across the site are Themba, Joy and Sophia warning the other lions to stay away from their cubs. The young cubs haven't learnt to join in properly yet, but staff say it shouldn't be too long now,
It's probably fair to say that Christmas is well and truly over, and no doubt you've all taken your decorations down by now. But what did you do with your Christmas tree? Have you ever thought of donating it to lions and tigers?
Yes, you did read that right. The Wildlife Heritage Foundation in Kent is appealing for people to donate their trees as toys for the big cats. Andrea Thomas has been speaking to keeper Briony Smith.
And if you want to donate your Christmas tree, you can get in touch with them directly:
Wildlife Heritage Foundation, Headcorn Rd, Smarden, Ashford, Kent TN27 8PJ Tel: 01233 771915
The sanctuary is not open to the public, but it does hold open days in July.
In less than half a century the number of lions in Africa has plummeted by 75 per cent - most of them hunted for sport and trophies. Other big game animals are under similar threat.
Now Queen guitarist Brian May and singer Kerry Ellis are on the road with their Born Free tour to try to halt that decline. ITV News correspondent Andy Bevan watched them rehearse.