Monstrous mammoths - Damian Harvey

Meet the Mudcrusts! Lowbrow Mudcrust is the lumbering, lazy head of thefamily, who is happiest when he is squelching his toes in the slime.That doesn't stop his wife Flora from nagging him and reminding himthat he's not the chief of the tribe. Their two children, Bogweed andFungus, are always fighting. Although Fungus doesn't have Bogweed'sbrute strength, he is does have more brains.

The third book in the Mudcrustsseries, inMonstrous Mammoths wediscover that the problems of the Mudcrusts are not over yet. They'veescaped the destruction of their hut and battled against sabre-toothedtigers, but there's more trouble in store.