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Male vs. Female Betta: What are the Differences? - MSNMale vs. Female Betta Fish: Beard and Flaring. While both male and female bettas have a membrane below their gill plate that appears like a “beard,” the male has a larger beard.
Colorful and mysterious opah found to be 'first fully warm-blooded fish' The opah, ... "There has never been anything like this seen in a fish's gills before," Wegner said, ...
Shopping for wild-caught fish can be ethically fraught for ... while other trap fishermen are experimenting with colorful, ... swordfish gill nets during the 2010-2011 season ...
11 Colorful Fish That Could Be Living in Your Tank Right Now. Mary Austin. March 28, 2025 at 11:15 AM. Copied; If your aquarium feels a little blah, maybe it’s missing some bold personalities.
Freshwater fish take up chemicals from the surrounding water through their gills Biologists have cast doubt on the long-held theory that fish gills evolved primarily for the purpose of breathing. The ...
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