In the clearing, the Entelodons and Hyaenodons roared at each other. It was clear both wanted the Chalicotherium carcass and neither was going to back down in a hurry. Drew, Alice and Leon sat down; this dispute was going to last a while. They all knew that disputes over carcasses in the wild could last for hours; especially in a drought, where every meal was valuable.

Whilst this conflict had, initially, been just noise, after a couple of hours, the Entelodons got bolder, making mock charges at the Hyaenodons, snapping at them, in an attempt to intimidate them into fleeing. The Hyaenodons stood their ground, snarling and whooping defiantly. But how long were they going to last? The Entelodon had size and power on their side; they also had the advantage of numbers. It was a fact; the odds were tipped in the Entelodons' favour.

Eventually, the Hyaenodons, deciding that no meal was worth this risk of injury, fled into the bushes, leaving their kill to the Entelodon, who ripped into it with gusto, crunching through flesh, skin and bone. Alice muttered, "There won't be much left of the carcass in a few minutes. If we don't act now, we'll miss the opportunity."

As the three humans approached the carcass, however, the nearest Entelodon stamped its foot and bellowed at them. It was clear that they were not going to let anyone near the carcass any time soon. Drew and Cynthia stepped back; however, Leon moved forward, grabbed an air horn and began blaring it at the Entelodon. The Entelodon, their attention turned to the three humans, let out low, indignant bellows at them. Drew and Alice grabbed Leon and pulled him aside and Alice asked "What do you think you're doing?".

Leon smiled and said, "We make some noise and attract their attention; it's thought that, like rhinos, they had poor eyesight but a good sense of hearing and smell. When they move towards us, we open the portal." Drew nodded and said "Sounds like a plan". As Leon continued blaring, the Entelodon became more and more angry, bellowing and pawing the ground like fighting bulls, before they all came charging towards Leon. Drew quickly grabbed his portal remote, causing the portal to whirr into life. The Entelodons all charged through the portal, into the present

Meanwhile, back at the park, Yolanda was looking at Sharptooth; or rather his foot. She was nervous; Sharptooth was the park's largest terrestrial carnivore, and the most dangerous. Yes, he was sedated into tractability, but one kick and it would be her spine being broken.

Eventually, she found the cause of Sharptooth's misfortune - one of his toe claws had ingrown, digging into the skin of his foot. This was a surprisingly easy fix; she got out a large clipper (specialist made for large animals) and trimmed down the area that was cutting into the toe. She would continue this by small amounts over the next few days, until the defective claw was at a normal length. She then applied some antiseptics and antiinflammatories to the wound to reduce the swelling and lower the risk of infection.

The drowsy Sharptooth, now wandering around the vet pens, noted what had just happened. He was an intelligent animal - he understood the concepts of cause and effect. His claw had dug into his foot, causing pain whenever he tried to walk. The human had done something and the pain and discomfort had gone. Huh.

Maybe those little creatures weren't so bad after all.

Back in Oligocene Mongolia, the team had left the clearing and headed down to the watering hole. Well, "watering hole" was a bit of an optimistic description; it was little more than a large pond. However, in a drought, a large pond was good enough for all the plants; and all the animals as well.

As the team headed down, they noticed a family of animals drinking by the lake. They were vaguely dog-like in appearance, with a long body, a pointed muzzle and a long, thin tail. However, they had flat feet, like a bear, and their ears were more rounded than a dog or wolf's - again, like a bear. Their fur was a light brown, becoming paler on the flanks and belly. There were seven in all - two adults and five pups. The pups gambolled and yipped beneath the adults' feet. Leon knew what they were immediately, "Cynodictis; part of a family called the amphicyonids. They're distant relatives of bears and dogs; they're amongst the first true carnivorans."

Suddenly, a very familiar grunting bellow echoed through the air behind them. The Cynodictis family went rigid and the team turned to see an Entelodon walking slowly down to the lake. Noticeably, this Entelodon was larger than the group they had encountered in the clearing. The Cynodictis turned and fled as the Entelodon grunted and snapped at them. Drew, not wanting to miss this opportunity set up the portal in the direction the little bear-dogs were headed in. Not changing their trajectory, the Cynodictis ran through the portal, into the present

Now, the team turned their attention to the Entelodon. As the three humans approached the watering hole, however, the Enteldon stamped its foot and bellowed at them. It was clear that he was not going to move any time soon. Drew and Alice stepped back; however, Leon moved forward, grabbed an air horn and began blaring it at the Entelodon. The Entelodon in response let out low, indignant bellows at him. Drew and Alice looked curiously at Leon, with Alice asking "What are you doing?".

Leon smiled and said, "We make some noise and attract his attention; from what we saw in the clearing, Entelodon are pretty aggressive. When he charges us, we open the portal." Drew nodded and said "Sounds like a plan". As Leon continued blaring, the Entelodon became more and more angry, pawing the ground like a fighting bull, before it came charging towards Leon. Drew quickly grabbed his portal remote, causing the portal to whirr into life. The Entelodon charged through the portal, into the present.

After the Entelodon vanished through the portal, the team suddenly noticed something; huge grey clouds were beginning to gather in the sky, to the point that they blocked out the sun. They could glimpse distant lightning flashes in the distance. They looked at each other, as the wind began to get stronger, breaking dried plants and making the water on the pond ripple. Leon's eyes widened, "The rains are coming back." With this, Alice turned to Drew and asked, "So, what's the plan?" Drew shrugged, "We make camp and weather out this storm.