1. Animals

    This ancient marsupial lion had an early version of ‘bolt-cutter’ teeth

    Extinct dog-sized predator crunched with unusual slicers toward the back of its jaw.

  2. Paleontology

    This new dinosaur species was one odd duck

    Weird dino swimmer had flipperlike limbs and a swanlike neck.

  3. Animals

    The Lord Howe stick insect is officially back from the dead

    New genomic sequencing confirms that stick insects discovered near Lord Howe Island are the assumed-extinct Lord Howe stick insect.

  4. Paleontology

    New dinosaur sported a curious set of chompers

    Matheronodon provincialis, a newly described dinosaur, munched on tough plants with big scissors for teeth.

  5. Animals

    This sea snake looks like a banana and hunts like a Slinky

    A newly identified sea snake subspecies is known to live in a single gulf off the Pacific coast of Costa Rica.

  6. Paleontology

    This ancient sea worm sported a crowd of ‘claws’ around its mouth

    A newly discovered species of arrow worm that lived over half a billion years ago had about twice as many head spines as its modern kin.

  7. Animals

    This glass frog wears its heart for all to see

    A newly discovered glass frog species has skin so clear that it reveals most of the animal’s internal organs, including the heart.

  8. Paleontology

    New dinosaur resurrects a demon from Ghostbusters

    The most complete skeleton of an ankylosaur shows an armored, club-tailed dinosaur with a head like a Ghostbusters demon.

  9. Animals

    New worm-snail is a super slimer

    New worm-snail species shoots snot to snag a snack.

  10. Paleontology

    New tyrannosaur had a sensitive side

    Tyrannosaurs may have had sensitive snouts that detected temperature and touch.

  11. Animals

    Detachable scales turn this gecko into an escape artist

    A new species of gecko evades predators by shedding its scaly armor.

  12. Paleontology

    Dragon dinosaur met a muddy end

    ‘Mud dragon’ fossil discovered in China suggests that dinosaurs’ last days were an active time of evolution.