IN NUMBERS

14%

increase in long-tailed tit sightings in UK gardens has been reported by the RSPB Big Garden Birdwatch 2020. Wren and coal tit reports are also up.

2019

was the best year for British butterflies since 1997, according to the latest UK Butterfly Monitoring Survey results.

100

years or more is the age of some whale sharks. Researchers used data from atomic bomb tests conducted during the Cold War to obtain this estimate.