Yes, fish can see humans, and recent research shows some species can even recognize individual human faces, differentiating between people and even remembering those who feed them, though clarity depends on water conditions like clarity, light, and surface ripple. They see us through "Snell's Window," a circular view above water, with clear vision in the center but blurriness at the edges.
They can and will see you if you do not take care in your approach and your presentations to them. Once you're spotted and one fish spooks, they will send alarm bells to all the rest of the fish in the spot and your chances of catching a spooked fish are zero.
Wild fish can recognize individual humans. And, more than that, they follow specific divers they know will reward them. This finding lends credence to the possibility that fish can have differentiated relationships with specific humans.
Besides being able to see their prey and recognize their owners, fish also can see a range of colors, since they have color receptors in their eyes. Many species of fish can also see ultraviolet light, which humans can't.
You may notice that when you come into the room where your aquarium is, the fish start to react by swimming around and coming up to the glass or the surface. This is because they recognize that you are the person who brings them food.
Fish can feel – and there's over 30 years of scientific research to prove it. Between 1990 and 2020, 349 articles documenting sentience in fish were published. Researchers recognised that over 140 species of fish can experience a wide variety of emotions, ranging from altruism to stress.
In a first-of-its-kind study into the cognitive behaviour of fish living in the sea, researchers from the Max Planck Institute of Animal Behaviour – a research facility with headquarters in Germany – have found that wild fish can recognise individual humans.
Rhinoceroses. This beast of the African Savannah is most well-known for its impressive horns, and it's often depicted charging targets with incredible speed. ...
Bats. Contrary to popular opinion, bats aren't blind. ...
“Fish are more intelligent than they appear. In many areas, such as memory, their cognitive powers match or exceed those of 'higher' vertebrates including non-human primates.” Fish's long-term memories help them keep track of complex social relationships.
They're capable of remembering past social interactions that they've had with other fish, and they show affection by rubbing against each other just like other animals. 3. Neurobiologists have long recognised that fish feel pain and suffer stress just like humans and other animals. 4.
The researchers found that fish, which lack the sophisticated visual cortex of primates, are nevertheless capable of discriminating one face from up to 44 new faces.
While it's true that fish can hear sounds, they can't necessarily hear the specifics of your conversation. A casual conversation won't send fish fleeing in terror, but a loud or sudden noise will spook them.
While fish do not experience REM sleep in the same way as humans (due to lacking eyelids), some species like zebrafish show a REM-like stage with increased brain activity. This stage, where brain activity spikes, is associated with dreaming in mammals, but it's unclear if fish have the consciousness to dream.
Dr Ulrike Siebeck: research finds fish can distinguish human faces. An SBMS research team led by Dr Ulrike Siebeck has discovered that archerfish can discriminate between human faces. This is the first time fish have been known to demonstrate this ability.
Some species of dragonfly have more than 28,000 lenses per compound eye, a greater number than any other living creature. And with eyes covering almost their entire head, they have nearly 360-degree vision too.
Not all fish can be petted while some varieties, like groupers, really enjoy being touched and caressed. At times, you may even notice that your favorite pet fish come up from their tanks to be caressed and petted.
Among non-human animals, chimpanzees demonstrate the most convincing evidence of self-awareness (Gallup, 1970; Lethmate and Dücker, 1973; Suarez and Gallup, 1981; Marino et al., 1994; Gallup and Anderson, 2019), with roughly 75% of young adult chimpanzees passing the MSR test (Robert, 1986).
Most are removed from water and left exposed to air, which leads to intense and prolonged suffering. Studies show that fish, including species like rainbow trout, experience pain much like mammals do. They have pain receptors, display distress behaviors, and even respond to pain relief.
It has been proposed that fish can feel pain both because they have peripheral nociceptors and because neural responses to noxious stimuli have been recorded in the spinal cord, cerebellum, tectum and telencephalon of fish (Sneddon 2004; Dunlop and Laming 2005).
Although there is no proof of this, there is also no evidence of the opposite*. Considering the discussion above, what should researchers and the public do? We should first of all admit that we cannot assume that animal pain is less severe than human pain.
