PHOTOS: Java mouse-deer, the world’s tiniest (and cutest) deer

A picture taken on April 25, 2014 shows a Java mouse-deer cub, one of the world's smallest hoofed animals, and its mother at the Fuengirola Biopark, near Malaga. The latest specimen of the world's tiniest deer -- a rare species no bigger than a hamster -- has been born in a nature park in southern Spain, conservationists said today. The baby "deer-mouse" became just the 43rd living member of this species in Europe when it was born on April 9. Jorge Guerrero/AFP/Getty Images ( 529239880 )

A picture taken on April 25, 2014 shows a Java mouse-deer cub, one of the world's smallest hoofed animals, and its mother at the Fuengirola Biopark, near Malaga. The latest specimen of the world's tiniest deer -- a rare species no bigger than a hamster -- has been born in a nature park in southern Spain, conservationists said today. The baby "deer-mouse" became just the 43rd living member of this species in Europe when it was born on April 9. Jorge Guerrero/AFP/Getty Images ( 529239887 )

A picture taken on April 25, 2014 shows a Java mouse-deer cub, one of the world's smallest hoofed animals, at the Fuengirola Biopark, near Malaga. The latest specimen of the world's tiniest deer -- a rare species no bigger than a hamster -- has been born in a nature park in southern Spain, conservationists said today. The baby "deer-mouse" became just the 43rd living member of this species in Europe when it was born on April 9. Jorge Guerrero/AFP/Getty Images ( 529239838 )

A picture taken on April 25, 2014 shows a Java mouse-deer cub, one of the world's smallest hoofed animals, at the Fuengirola Biopark, near Malaga. The latest specimen of the world's tiniest deer -- a rare species no bigger than a hamster -- has been born in a nature park in southern Spain, conservationists said today. The baby "deer-mouse" became just the 43rd living member of this species in Europe when it was born on April 9. Jorge Guerrero/AFP/Getty Images ( 529239843 )

A picture taken on April 25, 2014 shows a Java mouse-deer cub, one of the world's smallest hoofed animals, and its mother at the Fuengirola Biopark, near Malaga. The latest specimen of the world's tiniest deer -- a rare species no bigger than a hamster -- has been born in a nature park in southern Spain, conservationists said today. The baby "deer-mouse" became just the 43rd living member of this species in Europe when it was born on April 9. Jorge Guerrero/AFP/Getty Images ( 529239896 )

A picture taken on April 25, 2014 shows a Java mouse-deer cub, one of the world's smallest hoofed animals, at the Fuengirola Biopark, near Malaga. The latest specimen of the world's tiniest deer -- a rare species no bigger than a hamster -- has been born in a nature park in southern Spain, conservationists said today. The baby "deer-mouse" became just the 43rd living member of this species in Europe when it was born on April 9. Jorge Guerrero/AFP/Getty Images ( 529239932 )

A picture taken on April 25, 2014 shows a Java mouse-deer cub, one of the world's smallest hoofed animals, at the Fuengirola Biopark, near Malaga. The latest specimen of the world's tiniest deer -- a rare species no bigger than a hamster -- has been born in a nature park in southern Spain, conservationists said today. The baby "deer-mouse" became just the 43rd living member of this species in Europe when it was born on April 9. Jorge Guerrero/AFP/Getty Images ( 529239936 )