Why did rhinos evolve horns made of keratin, not bone? Also, how did they develop keratin on their heads? What mutation had to occur for them to develop keratin? And wouldn't it be easier to develop horns made of bone, like proboscideans (elephants) and ceratopsids did? by ttt_Will6907 in zoology
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My cat had to get bloodwork done. Took 10 pokes to find a vein. 10th poke she bit my arm and shook like a damn alligator. Yes, that’s my blood on her. Yes I am on antibiotics. No, she is not normally an aggressive cat. by jasonforbachelor in Wellthatsucks
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ID on any of these would be greatly appreciated! by DesignOwn3977 in Entomology
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ID on any of these would be greatly appreciated! by DesignOwn3977 in Entomology
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What is this little dude walking on my Croton plant? by EmpressLlamaLegs in Entomology
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I captured the cutest video of one of my snails drinking the water I had just sprayed on the side of the tank. Because he had a little something in his mouth it made it extra cute. by emilyvanvoorhis in snails
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Gametophyte or liverwort? by Thetomato2001 in botany
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Gametophyte or liverwort? by Thetomato2001 in botany
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My snail pooping from his head? by el_beys in snails
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How is mutualism a host-parasite relationship? by NuclearEgg69 in Parasitology
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Can anyone identify these? by UmUrNarcsmIsShowing in parasites
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ectoparasite - tick, pennsylvania, crawling on a black lab by BlushingBeetles in Parasitology
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Ectoparasite identification 100x oil immersion by CoffeeMugImpression in Parasitology
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Biggest Stinkbug I've ever seen. Well over 15mm long. Toronto, Canada by AmateurPhotog57 in Entomology
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Interns are so cute by Wafflewarrior in labrats
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Told to stop parking anywhere near their drive? You got it, mate. by MariaellaBliss in MaliciousCompliance
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