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'Grabbed my ankle and pulled': He surfed for 30 years in Hawaii but an 8-foot shark still took him by surprise
一位经验丰富的冲浪者 Koa Smith 在欧胡岛南岸遭遇了可怕的鲨鱼袭击。这位 38 岁的男子正在冲浪,一条鲨鱼抓住了他的脚踝。他设法挣脱束缚并到达岸边。史密斯双腿均受重伤。预计他将完全康复。由于该地区鲨鱼活动增加,当局已发出警告。
This Jellyfish Can Heal Wounds in Minutes Without Scars and Scientists Think They’ve Found Its Secret
透明水母展示细胞如何爬行、拉扯和协调伤口修复。