Season
- Season 0 2012-02-22
- Season 1 2013-01-14
- Season 2 2014-01-20
- Season 3 2015-01-19
- Season 4 2016-01-26
- Season 5 2017-01-23
- Season 6 2018-01-29
- Season 7 2019-01-29
- Season 8 2020-01-28
- Season 9 2021-01-19
- Season 10 2022-01-18
- Season 11 2023-01-17
- Season 12 2024-01-16
- Season 13 2025-01-21
- Season 14 2026-01-20
- Season 21 2025-02-18
- Season 22 2025-01-21
- Season 2026 2026-01-20
Winterwatch - Season 21 Episode 2 Adaptation
9.60 60 minutes Iolo Williams explores the various strategies that animals use to survive harsh winters, including the incredible adaptations that mean ducks' feet don’t freeze and pond creatures can survive under ice. Iolo also visits a greater horseshoe bat roost before they move on to hibernate and searches for the caterpillars of marsh fritillary butterflies that overwinter in special frost-resistant webs.
