week 28

A hippopotamus can remain under water for six minutes or so. While a beluga whale can stay down for 20 minutes under water. How elephant seals can dive to the bottom and stay there for a full 2 hours must seem incredible to both hippopotamus and the whale. The trick is in that the seal has learnt to slow down its heartbeat while it is underwater. To each its own.
Even so in the measuring scale of nature each holds the same weight.
benny