Animals line up for the London Zoo's annual weigh-in 

It's that time again — when animals (and insects) big and small are measured at the London Zoo. Wednesday begins the process of monitoring every animal, a process that takes all year. According to zoo officials, the keepers are responsible for recording the height and weight of more than 16,000 animals, including tigers, camels, frogs and much more. 

The measurements are then recorded and shared with zoos around the world. Zoologists use the information to compare statistics on thousands of endangered species.

African bullfrog Leon Neal / AFP - Getty Images
It's not easy being green: An African bullfrog is placed on a weighing scale.

Zoological director David Field says the information helps zoos monitor animals' health, diets and general well-being. 

"By sharing it with other zoos and conservationists, we can use this knowledge to protect wild animals, and use it to assess their health, their behaviors and even their ages,” Field said in a press release.

Take a look at the wide range of animals and insects getting ready for their inspection:

Jungle Nymph Leon Neal / AFP - Getty Images
A Jungle Nymph stays still long enough for zookeepers to get his weight.
royal python Bethany Clarke / Getty Images
A royal python starts to slither off of the scale while being weighed.
Tammy, a Tree anteater, is weighed during the London Zoo's annual weigh-in in London on August 21, 2013. The task involves weighing and measuring the ... LEON NEAL / AFP - Getty Images
Tammy, a tree anteater, is fed by a zookeeper from a jar to keep him from wandering off.
Bactrian camel Leon Neal / AFP - Getty Images
Noemie, a Bactrian camel, is fed while being weighed.
waxy monkey tree frog Suzanne Plunkett / Reuters
A waxy monkey tree frog is weighed in a special frog measuring device.
Tawny Owl Leon Neal / AFP - Getty Images
Owlberta, a Tawny owl, stays on its perch.
African Land Snail Leon Neal / AFP - Getty Images
An African land snail eats lettuce while being weighed.
Sumatran tiger Leon Neal / AFP-Getty Images
Jae Jae, a Sumatran tiger, is teased from above to get his height.
  • Slideshow Photos

    Image: Oregon Hummingbird

    Animal Tracks: Aug. 14 - 21

    From a colorful hummingbird to a zoo weigh-in, get your cuteness fix with irresistible photos of creatures great and small.

  • Animal Tracks: Aug. 14 - 21

    of

    Weigh-in -

    A waxy monkey tree frog is weighed during the annual measuring of all the animals at the London Zoo, in central London on Aug. 21.

    Follow us on Twitter @TODAYPets
    Suzanne Plunkett / Reuters
  • Animal Tracks: Aug. 14 - 21

    of

    Moving forward -

    Geese fly over the Martin Luther King Jr. Memorial in Washington D.C. on Aug. 20.

    Follow Animal Tracks on Pinterest

    Kevin Lamarque / Reuters
  • Animal Tracks: Aug. 14 - 21

    of

    Staying close -

    A 4-year-old Asian elephant named Kai-Mook, right, stands next to its mother at the Planckendael Zoo near Mechelen, Belgium on Aug. 20.

    Follow us on Twitter @TODAYPets
    Francois Lenoir / Reuters
  • Animal Tracks: Aug. 14 - 21

    of

    Looking good -

    A pelican looks at visitors at the Planckendael Zoo near Mechelen, Belguim on Aug. 20.

    Follow Animal Tracks on Pinterest

    Francois Lenoir / Reuters
  • Animal Tracks: Aug. 14 - 21

    of

    Let's play! -

    A 1-month-old zebra jumps next to its mother at the Planckendael Zoo near Mechelen, Belgium Aug. 20.

    Follow us on Twitter @TODAYPets
    Francois Lenoir / Reuters
  • Animal Tracks: Aug. 14 - 21

    of

    Slowpoke -

    A Helicidae snail crawls on a wet leaf in a garden in Jacobsdorf, eastern Germany, on Aug. 20.

    Follow Animal Tracks on Pinterest

    Patrick Pleul / AFP - Getty Images
  • Animal Tracks: Aug. 14 - 21

    of

    First doggies -

    Bo, left, and Sunny, the Obama family's new puppy, are pictured on the South Lawn of the White House in Washington on August 19, 2013. The White House announced its furry new resident on Monday. Sunny, a one-year-old Portuguese Water Dog, moved into the stately Washington residence of President Barack Obama and his family, joining Bo, a male dog of the same breed, the White House announced on its website.

    Follow us on Twitter @TODAYPets
    Pete Souza / AFP - Getty Images
  • Animal Tracks: Aug. 14 - 21

    of

    Eye-opener -

    Giant panda Yuan Yuan's cub opens her eyes for the first time at Taiwan's Taipei City Zoo on Aug. 19.

    Follow Animal Tracks on Pinterest

    Taipei City Zoo via AFP - Getty Images
  • Animal Tracks: Aug. 14 - 21

    of

    Going gaga -

    Lady Gaga and her dog Fozzy visit "Elvis Duran and the Z100 Morning Show" at Z100 Studio on Aug. 19 in New York.

    Follow us on Twitter @TODAYPets
    Kevin Mazur / Getty Images
  • Animal Tracks: Aug. 14 - 21

    of

    Scary spider -

    A spider touches a blossom caught up in its net on Aug. 18 near Oberstdorf, southern Germany.

    Follow Animal Tracks on Pinterest

    Karl-Josef Hildenbrand / AFP - Getty Images
  • Animal Tracks: Aug. 14 - 21

    of

    Happily humming -

    A wild rufous hummingbird lands on a fuchsia bush in a backyard garden at a home hear Roseburg, Ore., on Aug. 18.

    Follow us on Twitter @TODAYPets
    Robin Loznak
  • Animal Tracks: Aug. 14 - 21

    of

    Standing tall -

    Giraffes, from left, 2-month-old Potaka, 9-month-old Dave, and Franny, 21, enjoy the summer weather at their outdoor habitat at Brookfield Zoo in Brookfield, Ill. on Aug. 17.

    Follow Animal Tracks on Pinterest

    Jim Schulz / Chicago Zoological Society via AP
  • Animal Tracks: Aug. 14 - 21

    of

    Loving helper -

    A guest hugs her guide dog during the Pebble Beach Golf Links in Pebble Beach, Calif. on Aug. 18.

    Follow us on Twitter @TODAYPets
    Michael Fiala / Reuters
  • Animal Tracks: Aug. 14 - 21

    of

    Seal serenade -

    Steve Westnedge plays his saxophone for a leopard seal known as Casey as part of a study on the animal's reactions to different sounds at Sydney's Taronga Zoo on Aug. 19. Westnedge, who is also the zoo's elephant keeper, plays the instrument next to the underwater viewing window to assist the study by researchers from the Australian Marine Mammal Research Centre. The seal occasionally responds with his own sounds, which are normally used when wanting to attract mates or establish territories.

    Follow Animal Tracks on Pinterest

    David Gray / Reuters
  • Animal Tracks: Aug. 14 - 21

    of

    Hound hug -

    A woman plays with her dog during a protest against animal abuse in San Jose, Calif. Aug. 18.

    Follow us on Twitter @TODAYPets
    Juan Carlos Ulate / Reuters
  • Animal Tracks: Aug. 14 - 21

    of

    Perfect pouch -

    A wallaroo and her joey jump around at The Miller Park Zoo in Bloomington, Illinois on Aug. 14.

    Follow Animal Tracks on Pinterest

    Jay Tetzloff / The Miller Park Zoo via AP
  • Animal Tracks: Aug. 14 - 21

    of

    Endangered kitty -

    Lindy, an ocelot kitten, leaves her nesting box for the first time on Aug.14. Lindy, born June 26, and her parents are part of the Species Survival Plan to assist a decreasing ocelot population.

    Follow us on Twitter @TODAYPets
    The Dallas Zoo via AP
  • Animal Tracks: Aug. 14 - 21

    of

    Whoooo are you looking at? -

    A horned owl winks at the Royev Ruchey zoo in Krasnoyarsk, Russia on Aug. 14.

    Follow Animal Tracks on Pinterest

    Ilya Naymushin / Reuters
  • Animal Tracks: Aug. 14 - 21

    of

    Princely kiss -

    Britain's Prince William pets a dog as he visits the Anglesey Show in North Wales on Aug. 14.

    Follow us on Twitter @TODAYPets
    Andrew Yates / AFP - Getty Images
TOP