Dorothea Bate discovered the dwarf elephant and the myotragus, an extinct goat-like antelope.
Collector James Cranfield says "it's like a dream" to acquire the head for £62,600.
James Cranfield knew an "antique fox head" up for auction was something much more special.
Przewalski's horses were once listed as extinct in the wild, with only a few remaining in captivity.
A 67 million-year-old Tyrannosaurus rex will go on sale in New York with a pre-sale value of $30m.
Sperm cells from Jock could bring the promise of new life thanks to the work of a wildlife charity.
Students share fears over climate, costs and AI – but still imagine flying cars and life underwater.
The blue-crowned laughingthrush fledglings are "vital to the survival of their kind", the zoo says.
A volunteer diver has described shaking as he filmed his encounter with an endangered Great White shark between Tunisia and Sicily.