Winter is when fat gets put on.

"In summer, narwhals are both niche-conservative and cold-adapted with a preferred feeding temperature of less than 2°C [31], yet climate change promotes warmer sea temperatures on their summer grounds [32] as well as the predicted disappearance of their winter habitat [33]. Our findings, therefore, raise concerns about the strong dependence this deep-diving predator has on its winter habitat."

#Narwhal
#ClimateChangeHabitatImpacts
https://royalsocietypublishing.org/doi/full/10.1098/rsbl.2022.0423?af=R