第 1245 号，共 1 402 张

Yellow stingray

Urobatis jamaicensis

只是会疼会疼，但不会对你造成严重伤害。

蜇伤吃：肉

The yellow stingray is a small ray that lives on the sandy, muddy or seagrass bottoms of shallow coastal waters in the western Atlantic, the Gulf of Mexico and the Caribbean. It spends much of the day buried under sand or lying still. It can sting with a venomous spine on its tail, but it usually ignores divers unless it is stepped on or provoked.1

生活在

Western Atlantic: Gulf of Mexico and Caribbean Sea, from North Carolina to Trinidad, including Florida and the Bahamas1

大西洋, 加勒比海, 墨西哥湾

首页

It lives in bays, lagoons, estuaries and low-energy surf zones, from the water's edge down to 25 m deep. It likes hard, rocky bottoms covered in small sea creatures, and also sand, mud and seagrass, sometimes near coral reefs. People are most likely to meet it in shallow water while diving or wading.1

长度

70 cm (2.3 ft)1

最高速度

约 14 公里/小时（8.7 英里/小时）

游泳, 粗略估计

它吃什么？

It eats small invertebrates such as shrimps, and probably worms, clams and small bony fishes. It often settles on prey and traps it against the bottom, then moves it to its mouth with its disc. It may also wave the edges of its disc to dig pits and uncover buried prey.1

Yellow stingray的照片 — Yellow stingray。照片：MattWright。 CC BY-SA 3.0, Wikimedia Commons.

怎样认出它

Nearly round pectoral fin disc with a short tail and a small, leaf-shaped tail fin.1
Pattern of spots and blotches, either light on dark or dark on light, which varies a lot between individuals.1
Can quickly change the tone and contrast of its colour to match its surroundings.1
Underside is yellowish, greenish or brownish white, with small darker spots near the edge of the disc and the tail.1
A serrated spine sits about halfway along the tail.1

毒液之力

蜇伤

毒液通过蜇刺出来。

它的毒液会造成什么？

The tail spine is coated in potent venom. The wound it causes is extremely painful, but it is seldom life-threatening.1

它对人有多危险？

对人的危险: 很疼可能真的很疼，但几乎从不严重。

It is not aggressive towards people. It injures people only when it is stepped on or otherwise provoked, and the resulting wound is very painful but seldom life-threatening.1

它害怕时会做什么？

When threatened it mostly stays still, buried under sediment or lying in vegetation, and if stepped on or provoked it defends itself with its tail spine.1

如果它蜇人

把伤口泡在热水里，水温以不烫伤为限、尽量热（先用你自己的手试一试），泡 30 到 90 分钟。去看医生，尤其是被石头鱼和魟鱼伤到时。

一定先拨打你的急救电话（112、000、911）。这里是一般急救指导，不是医疗建议。急救基础

注意安全

永远不要摸、抓或逗弄野生动物，即使是很小的，即使它看起来在睡觉或已经死了。
给它留出空间。如果遇到它，保持冷静，慢慢后退，让它走自己的路。
如果被它蜇了：保持冷静，保持不动，拨打你的急救电话（112、000、911）或尽快去医院。记住它长什么样，拍张照片会有帮助。

它不是冲着你来的。它用毒液捕猎或保护自己，而且它更愿意躲起来。更多安全知识

在世界哪里？

非洲亚洲欧洲北美洲南美洲澳大利亚和大洋洲大西洋加勒比海墨西哥湾

它有多大？

它有多长？

和 4 根香蕉首尾相接一样长13 秒就能游完一个大泳池（50 米）

Yellow stingray和你比起来有多大？

只是在你的浏览器里算一算。什么都不会被保存或发送到任何地方。

它有多快？

一名奥运游泳选手 约 8 公里/小时 (5 mph)

Yellow stingray 约 14 公里/小时 (8.7 mph)

一只全速游的海豚 约 35 公里/小时 (22 mph)

值得了解

事实

It glows green when lit by blue or ultraviolet light, a effect called biofluorescence that may help it communicate and camouflage itself.1

It can raise the front of its disc to form a shaded 'cave' that draws in small creatures looking for shelter.1

Off Jamaica, up to one yellow stingray per square metre gathers under mangrove roosts used by cattle egrets, possibly because bird droppings feed the small animals that attract the rays.1

Its eyes give it a 360° view of its surroundings, and each eye has a covering that controls how much light enters.1

It can live for 15 to 25 years.1

谣言粉碎机

谣言： Stingrays attack people in the water.

真相： Yellow stingrays generally pay little attention to divers and can be approached closely. They only sting when they are stepped on or otherwise provoked.1

给毒液专家

学名: Urobatis jamaicensis
类别: 有毒的鱼
家人: Urotrygonidae2
排序: Myliobatiformes
大洲: 大西洋, 加勒比海, 墨西哥湾, 海洋
宝宝: It gives birth to live young, with litters of up to seven. Females have two litters a year in seagrass beds after a gestation period of 5–6 months.1
寿命: 约 25 年1
它在野外过得怎么样: Least Concern1
对人的危险: 2 / 5: 很疼3