porpoise
There has long been a superstition among mariners that porpoises
will save drowning men by pushing them to the surface, or protect
them from sharks by surrounding them in defensive formation.
Marine Studio biologists have pointed out that, however intelligent
they may be, it is probably a mistake to credit dolphins with
any motive of lifesaving. On the occasions when they have pushed
to shore an unconscious human being they have much more likely
done it out of curiosity or for sport, as in riding the bow waves
of a ship. In 1928 some porpoises were photographed working like
beavers to push ashore a waterlogged mattress. If, as has been
reported, they have protected humans from sharks, it may have
been because curiosity attracted them and because the scent
of a possible meal attracted the sharks. Porpoises and sharks
are natural enemies. It is possible that upon such an occasion
a battle ensued, with the sharks being driven away or killed.
Whether it be bird, fish or beast, the porpoise is intrigued
with anything that is alive. They are constantly after the
turtles, who peacefully submit to all sorts of indignities.
One young calf especially enjoyed raising a turtle to the surface
with his snout and then shoving him across the tank like an
aquaplane. Almost any day a young porpoise may be seen trying
to turn a 300-pound sea turtle over by sticking his snout
under the edge of his shell and pushing up for dear life.
This is not easy, and may require two porpoises working together.
In another game, as the turtle swims across the oceanarium,
the first porpoise swoops down from above and butts his shell
with his belly. This knocks the turtle down several feet.
He no sooner recovers his equilibrium than the next porpoise
comes along and hits him another crack. Eventually the turtle
has been butted all the way down to the floor of the tank.
He is now satisfied merely to try to stand up, but as soon
as he does so a porpoise knocks him flat. The turtle at last
gives up by pulling his feet under his shell and the game is over.
will save drowning men by pushing them to the surface, or protect
them from sharks by surrounding them in defensive formation.
Marine Studio biologists have pointed out that, however intelligent
they may be, it is probably a mistake to credit dolphins with
any motive of lifesaving. On the occasions when they have pushed
to shore an unconscious human being they have much more likely
done it out of curiosity or for sport, as in riding the bow waves
of a ship. In 1928 some porpoises were photographed working like
beavers to push ashore a waterlogged mattress. If, as has been
reported, they have protected humans from sharks, it may have
been because curiosity attracted them and because the scent
of a possible meal attracted the sharks. Porpoises and sharks
are natural enemies. It is possible that upon such an occasion
a battle ensued, with the sharks being driven away or killed.
Whether it be bird, fish or beast, the porpoise is intrigued
with anything that is alive. They are constantly after the
turtles, who peacefully submit to all sorts of indignities.
One young calf especially enjoyed raising a turtle to the surface
with his snout and then shoving him across the tank like an
aquaplane. Almost any day a young porpoise may be seen trying
to turn a 300-pound sea turtle over by sticking his snout
under the edge of his shell and pushing up for dear life.
This is not easy, and may require two porpoises working together.
In another game, as the turtle swims across the oceanarium,
the first porpoise swoops down from above and butts his shell
with his belly. This knocks the turtle down several feet.
He no sooner recovers his equilibrium than the next porpoise
comes along and hits him another crack. Eventually the turtle
has been butted all the way down to the floor of the tank.
He is now satisfied merely to try to stand up, but as soon
as he does so a porpoise knocks him flat. The turtle at last
gives up by pulling his feet under his shell and the game is over.
上一篇:《烟火》拼音 陈翔
下一篇:网络安全比赛
声明:以上文章均为用户自行添加,仅供打字交流使用,不代表本站观点,本站不承担任何法律责任,特此声明!如果有侵犯到您的权利,请及时联系我们删除。
文章热度:☆☆☆☆☆
文章难度:☆☆☆☆☆
文章质量:☆☆☆☆☆
说明:系统根据文章的热度、难度、质量自动认证,已认证的文章将参与打字排名!
本文打字排名TOP20
- 1游客14794970... 06-06 18:32339 KPM
- 2Pisarian 04-26 19:18323 KPM
- 3leieaooooo 03-25 17:54317 KPM
- 4游客15894873... 02-09 09:04315 KPM
- 5LDL 05-17 14:49293 KPM
- 6李兴 06-02 23:38291 KPM
- 7游客14526696... 04-23 15:06253 KPM
- 8蚊子12138 04-23 22:53229 KPM
- 9游客13945118... 04-23 20:19220 KPM
- 10不配当祖安 05-01 21:50209 KPM
- 11游客14692332... 04-21 15:29198 KPM
- 12游客19800550... 10-25 21:34197 KPM
- 13游客14785367... 04-22 00:15196 KPM
用户更多文章推荐
- a man made disease2021-04-20
- The Morden City2021-04-14
- secret in industry2021-04-12
- Banks and Their Customers2021-04-07
- Trading Standards2021-04-02