Why are fish getting smaller due to climate change?
Fish around the world are shrinking due to climate change, and no-one is entirely sure why.
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Fish around the world are shrinking due to climate change, and no-one is entirely sure why.
The analysis of a 438 million-year-old fossil fish brain revealed that the middle structure of the human ear originated from prehistoric fish gills.
Practical level. what can you do to try to avoid any attack? >> reporter: don't swim between dusk and dawn. you want to avid areas where there's fishing or birds diving to grab fish. you want to swim in groups and you want to be sure to remove any jewelry, any watches below the water because they could give off a shine that looks like fish gills to to a shark. >> you can't swim dawn to dusk or just around those areas? like high noon. >> reporter: i misspoke. don't swim during dusk or during dawn. during the rest of the day when the heat is at its peak and the water looks so refreshing there's ...