Sperm whale, Dream
06-February-2023 Monday
This is how sperm whales sleep :)
18-September-2022 Sunday
Whales, if necessary, can not sleep for three months
27-March-2022 Sunday
A flock of sperm whales sleeps in the middle of the open ocean
21-August-2021 Saturday
Get to the bottom? - Not for these guys!
31-January-2019 Thursday
How sperm whales sleep.
17-December-2018 Monday
Sleeping sperm whales
15-June-2015 Monday
Sleeping sperm whales
27-March-2015 Friday
12-minute sperm whale nap
02-November-2014 Sunday
How sperm whales sleep
14-August-2014 Thursday
sleeping sperm whales
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