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抹香鲸尸解剖:工作人员全副武装防“鲸爆”(图)

2016-03-12 13:27:42   华西都市报

抹香鲸只有下颌长有牙齿。

死因

抹香鲸的皮肤无明显外伤,皮下也无瘀血,因此可以排除打斗或是撞上船只受伤致死的情况。尼龙网是不是这头抹香鲸致死的罪魁祸首呢?专家们认为不排除人类活动的影响。

胃中空空

只发现一张8米长的渔网

由于2月14日是西方情人节,多情的人们给抹香鲸一前一后的搁浅死亡赋予浪漫的想象——“殉情”。

不过,经过解剖发现,两头抹香鲸并非“一对儿”,且均为雄性。据了解,一般雌性抹香鲸会带上各自幼崽,组成十多头左右的鲸群,结伴而行;而雄性抹香鲸则是“孤独的流浪者”,不会组成大规模鲸群,一般两三头一群,有的年长雄鲸还会独自行动。而这两头鲸一前一后搁浅,应该是属于同一个鲸群。

在解剖抹香鲸的胃时,工作人员在里面没有发现任何食物,只有一张长8.2米、宽1.7米的黑色尼龙网。2015年10月,台湾曾解剖一头搁浅的抹香鲸,在其胃中也发现大量渔网、塑料袋。当时有人推测,抹香鲸大概是将塑料袋等当成了水母误食,造成了消化系统被阻塞。

那么,尼龙网是不是这头抹香鲸致死的罪魁祸首呢?专家们认为不排除人类活动的影响。

大连生命奥秘博物馆创始人、大连医科大学解剖学教研室主任隋鸿锦说,根据解剖观察,抹香鲸的皮肤无明显外伤,皮下也无瘀血,因此可以排除打斗或是撞上船只受伤致死的情况。此外,两头鲸的胃里都空空如也,表明二者死前处于饥饿状态,“因此,也很有可能是在捕食的时候误入浅滩。”

寻宝

抹香鲸体内有一种神秘物质——龙涎香,它是珍贵的香料原料,是使香水保持芬芳的最好物质,同时也是名贵的中药。不过在这次抹香鲸的解剖中,专家们“什么也没有看到”。

珍贵龙涎香鲸腹内并没有发现

抹香鲸之所以备受人们关注,还与一种神秘的物质——龙涎香有关。

这种物质储存在抹香鲸的结肠和直肠内,刚取出时臭味难闻,不过经过一段时间存放后质地变硬、褪色并散发香气,点燃时更是香味四溢,胜过“麝香”。因此,龙涎香是珍贵的香料原料,是使香水保持芬芳的最好物质,同时也是名贵的中药。人们用“有市无价”来形容它的珍贵。

由于抹香鲸猎食大章鱼,因此人们普遍认为是抹香鲸体内未完全消化的章鱼喙骨,混合大量的分泌物形成的一种病理性结石。

不过,龙涎香存在抹香鲸体内,十分罕见。在这次抹香鲸的解剖中,专家们也着重对其肠道内的排泄物进行了检查,遗憾的是,“除了一些臭气熏天的东西,其他的什么也没有看到”。

责任编辑:张晓伟 CN042
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