Work out your fish tank’s volume in gallons and liters, its real water after glass and gravel, its filled weight, the heater and filter it needs and how many fish it can hold, species by species.
Convert dog years to human years by breed or size. A 1-year-old dog is about 15 and a 2-year-old about 24. Includes charts, breed lifespans and senior ages.
The 4:1 hummingbird nectar recipe with a calculator for any feeder size, plus how often to change it, what never to add and how to clean the feeder.
Measure the trunk, pick the species and your state, and get an age range for your tree, built on USDA Forest Service growth curves.
You can estimate a puppy’s adult weight to within about 10-15% (median error) from its weight today, once age, sex and breed size are accounted for. Enter your puppy’s age…
An interactive, labeled giraffe diagram from the side and front, with the anatomy and physiology of the head, tongue, neck, heart, stomach, legs and skin.
The smallest well-known blue animal is the steelblue ladybird, a beetle about 4 mm (0.16 in) long. Everything else on this list is bigger, and a lot of the “blue”…
A meerkat (Suricata suricatta) is a small, social mongoose that lives in the Kalahari and Namib deserts of southern Africa. It stands about a foot tall, digs for a living,…
The corn snake (Pantherophis guttatus, formerly Elaphe guttata) is a slender, non-venomous constrictor from the southeastern United States. It grows to about 2 to 5 feet, wears red-orange saddles outlined…