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brown spotted octopus blending in with its background
Steroids May Explain Octopuses’ Self-Starvation
Two glands increase steroid production after female California two-spot octopuses mate, a study finds. Those hormones may be responsible for the animals’ self-destructive behavior.
Steroids May Explain Octopuses’ Self-Starvation
Steroids May Explain Octopuses’ Self-Starvation

Two glands increase steroid production after female California two-spot octopuses mate, a study finds. Those hormones may be responsible for the animals’ self-destructive behavior.

Two glands increase steroid production after female California two-spot octopuses mate, a study finds. Those hormones may be responsible for the animals’ self-destructive behavior.

marine biology, animal behavior, behavior

ABOVE: A pair of Labroides dimidiatus cleaner fish cleaning a puffer fish
Cleaner Fish Alter Behavior if Partners Can See Them “Cheating”
Chloe Tenn | Oct 7, 2021 | 4 min read
A study of feeding behavior suggests the fish feed differently in front of their partners—a behavioral feature also found in primates.
sea snake swimming in blue water
Sea Snake “Attacks” Are Cases of Mistaken Identity: Study
Christie Wilcox, PhD | Aug 19, 2021 | 6 min read
The Scientist spoke to marine biologist Tim Lynch, who dusted off 25-year-old data from his PhD to figure out why olive sea snakes approach divers so often. He says the animals, especially the males, likely confuse people for potential mates.
A tiger shark swimming in the shallow water of the ocean above a sandy bottom, with another shark and fish in the background
While Some Sharks Flee, Tiger Sharks Brave Stormy Seas
Nikk Ogasa | May 12, 2021 | 3 min read
For the first time, scientists tracked large shark movements during hurricanes and found that tiger sharks may find the turmoil opportunistic for feeding.
Cuttlefish, cephalopod, mollusk, mollusca, animal behavior, marshmallow test, cognition, intelligence, evolution
Cuttlefish Delay Gratification, a Sign of Smarts
Asher Jones | Mar 5, 2021 | 8 min read
The cephalopods resisted temptation for up to 130 seconds to earn their favorite food, hinting at sophisticated cognitive abilities such as planning for the future.
Bottlenose Dolphin Adopts Whale Calf of Another Species
Jef Akst | Nov 1, 2019 | 5 min read
Interspecies adoptions are rare, but it’s not the first time this population of dolphins in French Polynesia has attempted it.
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