当前位置: 首页 > 知识库

What Do Elephant Seals Eat?

来源:四库百科 时间 : 2021-05-08 12:11:00 属于:Did You Know

Do you know those big animals that appear stranded on a beach, thousands of bodies lying on top of each other? Sometimes they make loud screeches and fight with each other. Well, they are elephant seals, and they are quite spectacular. Those screeches were actually used in Lord Of The Rings as orc screeches.

And if you thought that they nibble on plants or other veggies, you would be very mistaken.

They are carnivores, and they are incredible hunters.

Elephant Seal Diet

These impressive mammals hunt in the ocean, and they can spend up to two hours underwater without resurfacing. They search for their food with their whiskers, which vibrate and with their eyesight. Their favorite snacks are squid, fish, rays, skates, eels, crustaceans such as shrimps, prawns, crabs, and krill. The female elephant seals and the male elephant seals have different hunting routines.

Elephant Seal Hunting Habits

To find food, these mammals migrate and often spend months at sea, diving at great depths. The females hunt in an open ocean while the male elephant seals search for food on the ocean floor. Adult males usually dive deeper than the females, often up to 7800 feet. The male elephant seal is more consistent with his hunting routine. The female often changes route when chasing prey.

An elephant seal.

A southern elephant seal.

When the winter comes, they return to their breeding colonies to mate and to give birth to their yearly pup, which is nursed for a month, during which time the female does not eat. The elephant seal milk has over 50% of fat as opposed to 4% in human milk. The elephant seals spend the majority of their lives in the ocean, and about 20% on land. However, never try to provoke them on land, they can easily outrun you.  

Why Are They Called Elephant Seals?

As the largest seals in the world, there are two species of elephant seals; the northern ones around Mexico and Canada, and the southern elephant seals occupying the coasts of South Africa, New Zealand, and Argentina. These two species have very different lifespans. The northern elephant seal lives up to nine years, and the southern elephant seal lives between twenty to twenty-two years.  

The adult male, “the elephant of the sea,” has a large flexible snout that looks like an elephant’s trunk. They are much larger than females, and roar during the mating season by using their trunk.

A Few Facts About Elephant Seals

In 2000, in Gisborne, New Zealand, there was an elephant seal that attacked anything that was too close or on his area, like cars, boat trailers, trees, and trash bins.

They were close to extinction because they were hunted for their oil. However, there was one breeding colony that remained, and thanks to new marine conservation legislation that protected the seals, their numbers increased, and they were no longer endangered. Although hunters themselves, they have predators of their own, like killer whales, sharks, and humans. They can dive to great depths because of their blubber, and thanks to their enormous abdominal sinuses which hold oxygenated blood.

   

热门推荐
  • 生活常识
  • 家务日常
  • 习俗礼仪
  • 舌尖美食
  • 经典国学
最新发布
货到付款是什么流程
货到付款是什么流程
货到付款的流程是快递公司将商品送到后,在检查没有问题后将货款交给快递员即可,卖家和买家事先进行沟通,买家将商品下单后,卖
疯马皮是什么皮
疯马皮是什么皮
疯马皮是一种制皮工艺,也称为油浸皮,其手感光滑,而且触摸后表皮会有颜色变化,疯马皮的主要原料是头层牛皮,保养疯马皮时,要使用
玻璃水加什么才能防冻
玻璃水加什么才能防冻
玻璃水加酒精和乙二醇才能防冻,这两种物质可以降低液体的冰点,从而避免在低温情况下,液体出现结冰的现象,玻璃水按照用途可以
地暖水管多长时间清洗一次
地暖水管多长时间清洗一次
地暖水管需要1到2年清洗一次,但是具体情况需要根据水垢的程度判断,地暖水管长时间不清洗会导致管道中堆积生物黏泥等物质,可
猪小肠是什么部位
猪小肠是什么部位
猪小肠是猪的横结肠的一部分,主要用于输送和消化食物,有着较强的韧性,而且脂肪较少,保存猪小肠时,要将其放入冰箱的冷冻室中,延
绵白糖是什么糖
绵白糖是什么糖
绵白糖是白糖的一种,其质地绵软、颗粒较小,易溶于水,深受大众喜爱,常作为调味料或者甜味添加剂使用,保存绵白糖时,要将其装入密
大闸蟹黄发黑怎么回事
大闸蟹黄发黑怎么回事
大闸蟹黄发黑,可能是在烹饪的过程中,没有将其煮熟,导致外壳变红,但内部为黑色,或者大闸蟹烹饪前已经死亡,出现变质现象,产生黑色
吃螃蟹可以喝牛奶吗
吃螃蟹可以喝牛奶吗
吃螃蟹不可以和牛奶,螃蟹中的胆固醇可以与牛奶里的蛋白质反应,生成一种洗的呢物质,影响人体血液循环和消化吸收,引起恶心、头
螃蟹舞是什么梗
螃蟹舞是什么梗
螃蟹舞是韩国明星Lisa在一档综艺节目中跳的搞笑即兴舞蹈,由于其肢体和表情形成了明显的反差,从而给观众带来笑点,但螃蟹舞的
西兰花能放多久
西兰花能放多久
西兰花冷藏保存,可以存放七天的时间,冷冻保存时,能存放一个月,但西兰花的营养价值会降低,最好现买现用,保存西兰花时,应该用保鲜