When there's changes in light dolphins can adjust to this because of their pupils. That's kind of a broad question. Everything we can respond to, and most animals can respond to. Their special "sense" is echolocation, similar to bats. Tubing – Dolphin is trained to accept the introduction of a tube into its stomach. How do fish hear? Dolphins use sound, or echolocation, to communicate and navigate in the waters. Up until now, scientists believed that humans were the only animals that worked together, synchronizing their actions and noises with their friends. They recognise some colours and their pupils adjust to light and dark.

If an animal is sick, it can be force-fed via this method. Scientists have observed that dolphins at sea do not necessarily avoid floating oil slicks. Noise pollution affects how dolphins communicate and can make them feel scared. A Dolphin must be able to respond to changes in its internal and external environment such as changes in light, water temperature, climate change and pollution. Presentation of flukes – Dolphin is trained to present its tail and remain motionless for blood draws. Sound waves travel 4.5 times faster in water than they do in the air. Sound is an important source of information for animals living in the marine environment and all vertebrates, and many invertebrates, have evolved sensory mechanisms for detecting, localizing, and interpreting many of these sounds.The hearing system of vertebrates first arose in fishes, and this group of animals has two independent but related sensory systems to detect sound.
Sometimes they swim into them. As higher order animals, they can sense and react to light, heat, pressure, pain, visual stimuli of movement, sounds.auditory stimuli, smells, etc. Gonzalvo experienced a similar scene a year later, when he came across a pod of dolphins that appeared to be assisting a 3-month-old dolphin … Some parts of the ocean are noisier because of increased boat traffic, seismic surveys testing for mineral and oil deposits, marine wind farms and anti-predation devices. Dolphins use this to their advantage, in ways that would make a superhero envious. dolphins respond to many stimuli.
Once dolphins are surrounded by an oil slick, there is a risk that the toxic oil will enter their blowholes and mouths and, that they will inhale volatile toxic chemicals evaporating from the surface of the oil.


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