• Slideshow Photos

    ROMEO RANOCO / Reuters

    Image: Terrier puppy wears a pirate costume during 'A Petrifiying Trail Pet' costume party at a mall in Pasay city

    Dressed up pets and more in this week's best Halloween-themed animal pictures

  • Image: Terrier puppy wears a pirate costume during 'A Petrifiying Trail Pet' costume party at a mall in Pasay city

    Dressed up pets and more in this week's best Halloween-themed animal pictures

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    How Cute! -

    This Terrier puppy wears a pirate costume during 'A Petrifiying Trail Pet' costume party at a Pasay city mall in the Philippines on Oct. 23.

    Reuters
  • Image: Pet owner feeds her Terrier puppy wearing a pirate costume as they take part in 'A Petrifiying Trail Pet' costume party at a mall in Pasay city

    Dressed up pets and more in this week's best Halloween-themed animal pictures

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    Just so adorable! -

    Why can't it be Halloween all year long?

    Reuters
  • Image: A pet owner wears a Halloween mask with her Persian cats as they take part in a 'A Petrifiying Trail Pet' costume party at a mall in Pasay city

    Dressed up pets and more in this week's best Halloween-themed animal pictures

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    Festive felines -

    A pet owner wears a Halloween mask with her Persian cats as they take part in 'A Petrifiying Trail Pet' costume party in the Philippines on Oct. 23.

    Reuters
  • Image: Man shows his Pincher dog wearing a bat costume as they take part in 'A Petrifiying Trail Pet' costume party at a mall in Pasay city

    Dressed up pets and more in this week's best Halloween-themed animal pictures

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    Na na na na na na na na Batdog! -

    A man shows his Pincher pup wearing a bat costume as they take part in 'A Petrifiying Trail Pet' costume party in the Philippines on Oct. 23.

    Reuters
  • Image: BESTPIX ITALY-ANIMAL-ZOO-HALLOWEEN

    Dressed up pets and more in this week's best Halloween-themed animal pictures

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    Lemur checks out a pumpkin -

    A ruffed lemur plays with a jack-o'-lantern carved from a pumpkin at the Zoom Torino zoo and amusement park in Cumiana, Italy, on Oct. 28.

    AFP - Getty Images
  • Image: US-HOLIDAY-PUMPKINBASH-ZOO-FEATURE

    Dressed up pets and more in this week's best Halloween-themed animal pictures

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    Hippos chow down on pumpkins -

    Hippos are fed whole pumpkins during a preview for the Woodland Park Zoos Pumpkin Bash in Seattle, Washington, on Oct. 27.

    AFP - Getty Images
  • Image: ITALY-ANIMAL-ZOO-HALLOWEEN

    Dressed up pets and more in this week's best Halloween-themed animal pictures

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    Otters tear into a carved pumpkin -

    Otters play with a jack-o'-lantern carved from a pumpkin at the Zoom Torino zoo and amusement park in Cumiana, Italy, on Oct. 28.

    AFP - Getty Images
  • Image: TOPSHOT-ITALY-ANIMAL-ZOO-HALLOWEEN

    Dressed up pets and more in this week's best Halloween-themed animal pictures

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    Owl celebrates Halloween -

    A barn owl stands on a jack-o'-lantern carved from a pumpkin at the Zoom Torino zoo and amusement park in Cumiana, Italy, on Oct. 28.

    AFP - Getty Images
  • Image: Goshi the black Jaguar stands on top of a carved Halloween pumpkin in its enclosure as part of the Enchantment event at Chester Zoo in Chester

    Dressed up pets and more in this week's best Halloween-themed animal pictures

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    Goshi the black Jaguar stands on top of a carved Halloween pumpkin in its enclosure as part of the Enchantment event at Chester Zoo in Chester, Britain, on Oct. 24.

    Reuters
  • Image: Meerkats search for food inside a carved Halloween pumpkin in their enclosure as part of the Enchantment event at Chester Zoo in Chester

    Dressed up pets and more in this week's best Halloween-themed animal pictures

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    Meerkats search for food inside a carved Halloween pumpkin in their enclosure as part of the Enchantment event at Chester Zoo in Chester, Britain, on Oct. 24.

    Reuters