1Male cichlids are mainly freshwater fish that may go after other fish which dare cross their path.A male cichlid will even lunge even if "the other fish" happens to be himself: When some types of these cichlids see their own reflections in a mirror, they respond as aggressively as when ...
It is advisable tokeep them with fish that prefer the middle and bottom areasof the tank. Though butterflyfish are not efficient fish predators, they will eat small fish that come too close. Larger tetrasandbarbs, small bottom-orientedcichlids,catfish, Ctenopoma species, and mormyrids will make...
But recently a study (find) that a kind of fish called African cichlids can remember events from as long as 12 days ago.相关知识点: 试题来源: 解析 [答案]has found [解析]考查动词时态。最近一项研究发现,一种名叫非洲鲷鱼的鱼甚至能记得12天前发生的事。根据recently可知,应使用现在完成时,表示“...
In the study, researchers from MacEwan University in Canada trained a kind of fish called African cichlids to go to a certain area of their tank (水箱) to get food. They then waited for 12 days before putting them back in the tank again. This showed that they could remember their past...
根据“A recent study has found thatfish have much better memories than we thought.最近的一项研究发现,鱼的记忆力比我们想象的要好得多。”;“In the stud-y, researchers from MacEwan University in Canada trained akind of fish called African cichlids to go to a certain area of theirtank(水箱)...
patterned skin and aggressive nature. Like jaguar cats, these cichlids like meat and will eat smaller fish placed in their aquarium. They're also large, reaching up to 21 inches. If you're curious abouthow fast cichlids grow, you'll be surprised to know that it's around an inch every ...
根据第二段This fact has been known for some time that Cichlids and stingrays can precisely detect small quantities without counting.(一段时间以来,人们就知道慈鲷和黄貂鱼可以精确地检测到少量而不需要计数。)可知,在进行研究之前人们早就知道慈鲷和黄貂鱼不需要数就能精确地识别较小...
The chocolate cichlid is a freshwater fish that lives in the Amazon River Basin inSouth America. These fish love to swim in blackwater rivers and streams that have soft acidic water. They are social creatures and usually hang out in groups of five to 10 fish. Chocolate cichlids are omnivores...
Red Devil Cichlids do not have any exclusive disease that plagues them. However, they are susceptible to the common illnesses that affect freshwater fish. The most common of these diseases is Ich. 1. Ich Ich is a highly contagious disease that is caused by a parasite. Fish infected with Ich...