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So far The Wild World of Zoobooks has created 292 blog entries.

February 2019

ZooWorks Polar Bears

By | February 22nd, 2019|

Check out our readers’ polar bear drawings and poems!

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Polar Bear Babies

By | February 6th, 2019|

We normally associate springtime with baby animals, but some are born a little earlier in the year! Polar bears mate in the spring and give birth to their cubs in the winter, sometime between November and January. The newborn cubs are about one foot long and weigh about one pound. They stay in their den with their mother for the first few months of their life and emerge when it starts to get a little warmer out in March.

Once baby polar bears are out of their dens, they follow their mothers to the Arctic Sea, where they begin learning how to hunt and swim. They stay with their mothers until they’re about three years old and closer to their adult size– for some males, nearly a thousand pounds!


Photo by Scott Schliebe

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January 2019

Poison Frogs

By | January 30th, 2019|

In the US, it’s the dead of winter, but in the southern hemisphere, it’s summertime! South America is home to some of the world’s most colorful animals: the poison frogs.

Poison frogs (sometimes called poison arrow frogs) got their name because some groups of Indigenous people use the frogs’ poison on blowdarts. Only a handful of the 170 species of “poison frogs” have been used for this purpose, though. In fact, many species of poison frogs aren’t dangerous to humans at all.

The species that are dangerous, though, are very dangerous. Poison frogs’ skin is coated in toxins, which they produce from the foods they eat. The most toxic species, the golden poison frog, is dangerous even to touch, and each frog contains enough venom to kill up to twenty people. Their bright colors help to warn off potential predators, the same way that monarch butterflies do with their orange wings!

Photo by Wilfried Berns

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Dinosaur Nicknames

By | January 23rd, 2019|

Tyrannosaurus rex might be the world’s most popular dinosaur. Its name, which means “tyrant king of the lizards,” is a little long. So we shorten it to T. rex! Here’s why.

T. rex is short for the dinosaur’s scientific name, Tyrannosaurus rex. Animals’ scientific names are written in a special format— the wider group, called a “genus” first, and then the species name that only describes that type of animal. All animals (and plants and fungi) have scientific names, but most of the animals alive today have common names that we use instead. For instance, a Grevy’s zebra is a specific kind of zebra, and its scientific name is Equus grevyi. Equus is like the animal’s last name—it applies to different members of the horse family, including zebras, donkeys, and domestic horses. Then the species name acts like the animal’s first name—“grevyi” (which means “Grevy’s”) is saying what kind of Equus, or horse, it is. The official rule for scientific names is that the genus name gets capitalized, the species name stays lowercase, and the whole name gets put in italics. To abbreviate an animal’s scientific name, you put a period after the genus and then put the species name—to shorten Equus grevyi, you would write E. grevyi.

Most dinosaurs don’t have common names like Grevy’s zebra—the only name they have is their scientific one. Lots of kinds of dinosaur groups are widely known by their genus names, like Stegosaurus and Triceratops. With Tyrannosaurus rex, we’re talking about this particular species within the Tyrannosaurus genus (scientists aren’t sure if there are any other species of

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Photo Contest: Call for Entries!

By | January 17th, 2019|

If your family has a budding nature photographer ages 13-17, encourage them to enter our contest!

The 2019 National Wildlife Photo Contest is now open. Enter today!

The National Wildlife® Photo Contest, which began more than four decades ago, celebrates the power of photography to advance conservation and connect both photographers and viewers with wildlife and the outdoors. The most compelling nature images can help protect wildlife in profound ways.

We are excited to announce the following eight categories for entry in our 2019 contest:

  • Birds: Portraits and behavior
  • Mammals: Portraits and behavior
  • Reptiles & Amphibians: Portraits and behavior
  • Insects & Other Invertebrates: Portraits and behavior
  • Underwater Wonders: Scenic views, portraits and behavior
  • Landscapes & Plants: Scenic views and native plants in wild settings
  • People in Nature: People enjoying the outdoors or connecting with nature and wildlife
  • New Youth category for nature photographers age 13-17

Entry Fee: Your fee helps support the National Wildlife Federation’s work to protect wildlife and wild places. No limit on the total number of images allowed.

  • Enter one photo for $15
  • Enter up to ten photos for $20
  • Enter up to 15 photos for $25 (BEST VALUE, includes free one-year digital subscription of National Wildlife)

Grand Prize: $5,000

First Place: $500 for the winner in each category

Second Place: $250 for the winner in each category

Honorable Mentions: Each will receive a National Wildlife Federation calendar

A selection of the winning photographs and honorable mentions from the 2019 contest will be published in the December-January 2020 issue of National Wildlife magazine. All winning images and honorable mentions will also be published on the National Wildlife Federation’s website, and some will be featured in an exhibit in downtown Washington, DC.

Consider donating: The National Wildlife Federation greatly appreciates when photographers choose to donate some of their images. These donations help support our mission to protect wildlife and habitats. Photographers will always retain ownership and rights to their images. We […]

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Koala Drawings

By | January 17th, 2019|

Check out these drawings of our readers’ favorite animals from Down Under!

And don’t forget, your last chance to submit drawings of Wild Dogs for our next contest is coming up on January 23!


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Koala Babies

By | January 9th, 2019|

G’day, mates! The latest issue of Zoobooks is all about koalas (as well as other Australian animals). Even though koalas are sometimes referred to as “koala bears,” these Australian mammals aren’t bears at all—they’re marsupials! Koala mothers carry their babies in a pouch, just like kangaroos. Koalas’ pouches open towards the mom’s hind legs, instead of towards the mom’s head. Baby koalas spend the first 22 weeks of their lives inside their moms’ pouches, and afterward, they continue to nurse and sleep in their pouch. Baby koalas, called joeys, stay with their mothers until they’re about a year old.

Photo by Robyn Cox

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San Diego Zoo Koalas

By | January 1st, 2019|

Here’s a great craft for kids home on winter break! The San Diego Zoo has been home to koalas since 1925, and they have the largest koala colony outside of Australia. If your kids love these adorable marsupials, check out this craft on the zoo’s website. With some pom-poms, felt, googly eyes, and glue, your family can create a koala colony of your own!



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December 2018

Zooworks Spiders

By | December 20th, 2018|

Not everyone loves spiders, but we bet you’ll love these spider drawings made by our readers!

We’re also accepting entries for our next art contest: wild dogs!

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Arctic Wolf Spiders

By | December 12th, 2018|

You probably don’t see too many spiders outside in the winter– where do they all go? They don’t go inside– most house spiders spend their entire lives indoors. Instead, many outdoor spiders that live in cold climates have adaptations that allow them to survive the winter. Their blood contains a chemical that keeps them from freezing, sort of like anti-freeze for a car. Many spiders also become less active in the winter, which is part of why you might not see them.

The arctic wolf spider is a good example of an arachnid that can survive freezing temperatures. They live in the far north in places like Greenland. Arctic wolf spiders are hunters and can grow as big as 1.6 inches long– which might seem small until you see one making its way towards you!


Photo by D. Sikes

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Bird-eating Spiders

By | December 6th, 2018|

Most spiders are small and eat tiny bugs like mosquitos, flies, and clothes moths. Not the Goliath bird-eating tarantula. Bird-eaters are the world’s largest spiders, with a leg span of up to 11 inches– the size of a dinner plate. Despite their huge size and threatening name, they’re not dangerous to humans. They actually don’t even eat birds all that often– their diet mostly consists of insects like cockroaches, along with mice, frogs, and small lizards. Their venom isn’t strong enough to seriously hurt a human; in the event that a bird-eater feels threatened and bites a human, the venom is only as strong as a wasp sting.

While bird-eaters’ appearance might make them an arachnophobe’s worst nightmare, they’re fascinating animals. And though in the wild they live deep in South America’s jungles, you can see them on display at the Smithsonian’s National Zoo!

Photo by Brian Gratwicke

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November 2018

Plesiosaurs and Pliosaurs

By | November 29th, 2018|

Plesiosaurs are marine reptiles that lived during the time of the dinosaurs. They often had longer necks than some of their fellow sea creatures like mosasaurs and ichthyosaurs, but even among plesiosaurs, there’s a lot of diversity.

Plesiosaurs can be split into two groups– plesiosauromorphs, which had long, thin necks and slender jaws, and pliosauromorphs, which had shorter necks and bigger heads. Even though the plesiosauromorphs look sleek and streamlined, they probably didn’t move very quickly and hunted small prey, in part because their long necks were likely quite rigid. On the other hand, the pliosauromorphs, like this Kronosaurus, were top predators that hunted big animals.

Photo by Tim Sackton

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Zooworks Turtles

By | November 21st, 2018|

Slow and steady wins the race! Check out these awesome turtles that our readers have drawn, plus one terrific poem!

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Sea Turtles

By | November 14th, 2018|

Sea turtles are ancient creatures—they’ve been around since the time of the dinosaurs. There are seven species of sea turtles in the world, and they’re all at risk due to pollution and environmental change. One of the most endangered species is the hawksbill. Hawksbills get their name from their sharp, curved beaks, and they were hunted for their beautiful shells—another reason why they’re in trouble. But there’s a lot more to hawksbills than their looks.

Hawksbill turtles are omnivores that eat plants and animals; most of their diet is made up of sponges (which look like plants, but are actually animals). They also hunt jellyfish and Portugese men’o’war; the turtles shut their eyes when eating them to avoid getting stung!

Photo by Caroline S. Rogers, available through NOAA, US Fish and Wildlife Service

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Alligator Snapping Turtles at the St. Louis Zoo

By | November 8th, 2018|

Turtles are cute, slow, and gentle– sometimes. While some kinds of turtles, like stinkpots and painted turtles, are small and are generally easy-going, some of their cousins are less than friendly. If you swim in a lake, you’ll want to keep an eye out for alligator snapping turtles. These incredible reptiles are the largest freshwater turtles in North America, weighing in at over 200 pounds. They’re also, as their name suggests, fierce hunters with strong jaws. They lure fish to them by opening their mouths and wiggling their tongues, which have an attachment that looks like a worm. When a fish hoping for a tasty worm comes close, SNAP!

Even if you wouldn’t want to meet one of these animals while you’re swimming, it’s fun to see them at zoos like the St. Louis Zoo!

Photo by Chuck Dresner

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