2006-08-07 03:56:26 · 6 answers · asked by Anonymous in Education & Reference ➔ Trivia
Really long!
2006-08-07 03:59:50 · answer #1 · answered by swimmaholik 3 · 0⤊ 1⤋
Adult hippos typically resurface to breathe every 3-5 minutes. The young have to breathe every 2-3 minutes. The process of surfacing and breathing is automatic, and even a hippo sleeping underwater will rise and breathe without waking. Hippos have been documented staying submerged for up to 30 minutes. A hippo closes its nostrils when it submerges.
2006-08-07 04:53:56 · answer #2 · answered by underagelying 3 · 1⤊ 0⤋
14 days
2006-08-07 04:00:49 · answer #3 · answered by Anonymous · 0⤊ 0⤋
"Young hippos can only stay under water for about half a minute, but adults can stay submerged up to six minutes."
2006-08-07 04:00:56 · answer #4 · answered by johnslat 7 · 0⤊ 0⤋
A dead one filled with rocks or a live one? Be more specific.
2006-08-08 04:42:37 · answer #5 · answered by Anonymous · 0⤊ 0⤋
very long time
2006-08-07 06:31:28 · answer #6 · answered by leelee 3 · 0⤊ 0⤋