Ruby-Throated Hummingbird
Tiny bird, huge journey
Reproductive Methods
Internal Fertilization
Sperm fertilizes egg inside the female's body, common in mammals, reptiles, and birds
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Animals
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Internal Fertilization Animals
Thrush
Forest flutes of the world
Blue Shark
Built for the blue-water marathon
Sand Tiger Shark
Protruding teeth, gentle glide.
Kinder Goat
Small goat, big utility.
Mallard
The adaptable original duck
Senegal Parrot
West Africa's V-chested woodland parrot
Sleeper Shark
Slow swimmers, deep-sea survivors
Red-winged blackbird
Flash the red-rule the marsh
Blue Grosbeak
Big bill. Blue blaze. Brushland singer.
Northern Cardinal
Red crest, bold song, backyard royalty
Crab Spider
Side-stepping ambush artists
Imperial Moth
Big wings. Brief life. Night royalty.
Bonnethead Shark
Little hammerhead, big bay hunter
Spinner Shark
Spin, surge, strike-coastal hunter
Sixgill shark
Six gills. Deep shadows. Slow lives.
Kodkod
Tiny forest ghost of southern Chile
Quagga
Half-striped, fully gone-remember quagga
Harp Seal
Born on ice, built for the North
Babirusa
The pig with deer-like tusks
Beefalo
Bison toughness, cattle practicality.
Huntsman Spider
Sideways legs. Lightning-fast hunters.
Kiko Goat
Hardy by design, raised to thrive
Rodents
Born to gnaw, built to adapt