Would it be wrong to eat her? A back-scratching Austrian cow has upset conventional views on animal intelligence. Some think we should take beef off the menu.
Meet Veronika, the cow who uses tools
Brainy bovine: After Veronika the Austrian cow was spotted using a brush to scratch herself, many are questioning whether high levels of animal intelligence mean we should think about becoming vegetarian. Glossary
Revelation - When something is made clear or explained.
Termites - Small, soft-bodied, pale-coloured insects that live in large, organised colonies.
Doodlebugs - The larvae of the ant lion, small insects that dig pitfall traps in sand.
Philosopher - A thinker who comes up with ideas about big questions in life.
Ethicist - Someone who studies or specialises in ethics, which is the branch of philosophy concerned with moral principles.