A box jellyfish is cnidarian invertebrate. Cnidarians are animals that live exclusively in the water (fresh or marine water) that are characterized by...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your tough ...
Its poison is one of the deadliest in the animal world and can stop the human heart from beating within a few minutes. A box jellyfish can carry enough poison to kill 50 people.Since 1880, when people started keeping records, nearly 6,000 people have died from the sting of the box ...
根据最后一段Experimentswithmorejellyfishcouldconvincehimthattheanimalsreallydolearn.(用更多的水母做实验可以让他相信动物确实会学习。)可知布雷姆斯在最后一段暗示:他认为需要更多的测试来证实结果。故选A。 本文是一篇说明文,加勒比海匙状水母在没有中枢大脑的情况下学会了避开障碍物,这是首次证据表明水母可以在事件...
Tropical-dwelling box jellyfish have a cube-shaped body, and four different types of special-purpose eyes: The most primitive set detects only light levels, but another is more sophisticated and can detect the color and size of objects. (Image credit: Anders Garm) By all accounts, 10-year...
The article gives brief information about research which found gypsum crystal in the surrounding structures of box jellyfish's eyes keep some of them pointing up which might increase the animal's ability to navigate by using trees as landmarks even though box jellyfish do not have a brain....
"Secretary Bird," "Orca Energy," "Box Jellyfish -- no heart, deadliest animal." On the other side of sliding glass doors that lead outside to his pool, Paul shudders through his daily ice bath in what looks like a toppled refrigerator. Paul's assistant, Marcos Guerrero, has invited ...
C For Caribbean box jellyfish(水母), learning is literally a no-brainer.In a new experiment, these animals learned to spot and avoid obstacles(障碍物) despite having central brain, researchers report in Current Biology. This is the first evidence that jellyfish can make ment connections between...
It's true that tortoises live longer than other animals on land. The oldest tortoises that we know about died a the age of 188.However, some ocean animals live longer. Some koi, a kind of goldfish, can live for more than 200 years. There's even a kind of jellyfish that can change...
The first time I ever saw a box jellyfish, I was twelve. Our father took us to the Monterey Bay Aquarium. I never forgot what he said... That it was the most deadly creature on earth. To me it was just the most beautiful thing I'd ever seen. —— Seven Pounds ...
On Mid-Autumn Festival, it is natural to have a reunion dinner. In the evening, my grandmothers house was packed with people, it was really lively! My grandmother prepared a hearty reunion dinner with my favorite big crabs, steak, jellyfish, shrimp, fried rice noodles... delicious! After ...