Then Fyodorov left the house and went into the forest to look for his father among animals and plants.

NEWYORKER: Among Animals and Plants

Allergies to pollen, furry or feathery animals or house-dust mite, can be triggers for asthma, because they irritate the airways.

BBC: Asthma vaccine hope

While the Royal Society for the Prevention of Cruelty to Animals and the Cat Protection League re-house about 125, 000 stray or unwanted cats a year, the League guesses that there may be about 1.2m feral cats in Britain.

ECONOMIST: Cats and dogs fight it out for prime pet position