Core Insights - Recent research challenges the long-held belief that fish hovering in water is the most energy-efficient resting position, revealing that hovering fish actually burn twice the energy compared to resting states [2][3] Group 1: Fish Physiology and Behavior - All bony fish possess a unique organ called the swim bladder, which allows them to achieve near-perfect neutral buoyancy, similar to how submarines control their buoyancy [2] - The positioning of the swim bladder often does not align with the fish's center of mass, creating a need for constant adjustments to maintain stability while hovering [2] - Different fish species exhibit unique balancing strategies during hovering, with variations in fin positioning and body shape affecting energy efficiency and stability [3] Group 2: Evolutionary Adaptations - The metabolic rate of hovering fish is significantly higher, being twice that of resting fish, indicating a high-energy survival strategy evolved over millions of years [3] - Fish that are adept at high-speed swimming tend to have lower hovering efficiency, while those in complex coral reef environments have evolved rounder bodies for better stability during hovering [3] Group 3: Implications for Technology - The findings from this research could inform the design of underwater robots, suggesting that mimicking fish hovering mechanisms could lead to more energy-efficient and environmentally friendly robotic designs [4]

因为固执的人，不仅会折磨自己，而且还会把别人折磨疯。 那么问题来了，为什么有些人总是很固执？是什么原因造成的？ 今天我们一起来谈谈这个话题。 固执的人，常见的三种表现 在用人的时候，我一直有一个观点，不用固执的人。 通常来说，固执的人，都有这3种表现。 1.思维僵化单一，按照旧方法行事 固执的人，他们想法很单一，遇到事情，也总是习惯按照同一个方法解决。 举一个例子： 他是一个管理者，当工作进展不顺利时，他就认为是人的问题，所以换人。 产品卖不出去，也换人。 业务做不起来，还是换人！ …… 只要遇到问题，就想通过换人来解决。 但很多时候业务做不起来，不一定是人的问题。很可能是战略决策、组织系统等出现了问题。要仔细分 析，然后去想办法解决。 但在他的认知里，就只有换人这一条路，所以认准了这一个方法。 什么都不改，意味着什么都想保持原状。 但这样，其实就错过了向内求的机会，也就放弃了反省，会在错误里，走得越来越深。 世界是变化和发展的，差距和代沟就这样产生了。 你看，人们之所以固执，全是因为陷在了自己的认知里。 2.永远觉得自己对，不听别人的意见 固执的人，还容易自以为是。 在他的认知里，他总觉得别人没有自己厉害， ...