The Tomatometer rating – based on the published opinions of hundreds of film and
television critics – is a trusted measurement of movie and TV programming quality
for millions of moviegoers. It represents the percentage of professional critic reviews
that are positive for a given film or television show.
From the Critics
From RT Users Like You!
The Tomatometer is 60% or higher.
The Tomatometer is 59% or lower.
Movies and TV shows are Certified Fresh with a steady Tomatometer of 75% or
higher after a set amount of reviews (80 for wide-release movies, 40 for
limited-release movies, 20 for TV shows), including 5 reviews from Top Critics.
Percentage of users who rate a movie or TV show positively.
As the most diminutive warm-blooded mammals on Earth, trochilidae , or hummingbirds, have few competitors in terms of speed, with wings that beat an average of 200 times per second. This extraordinary rapidity enables them to perform spectacular feats virtually unknown to any other species of bird, including hovering, flying backwards, and, incredibly, flying upside down. Hummingbirds' metabolisms are also remarkable: the creatures must consume virtually half of their body weight in nectar every day, and even at this rate, the birds continually risk nighttime starvation; a survival mechanism compensates by lowering the body temperature of each at night, and reducing the heartbeat from a diurnal 600 beats per minute to a nocturnal 36. This episode of PBS's Nature series uses special cameras, capable of photographing 500 frames per second, to slow the hummingbirds down and reveal much about the mechanics of their day-to-day behavior -- including not simply nectar gathering, but vicious predatory behavior and mating rituals.