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What genus (group of species) do you think has the largest variance of size between smallest and biggest?

Reddit Animals

For example, birds have hummingbirds which are tiny (~10g) and then ostriches which are massive (100kg). But are there others, like spiders or fish? I’ve always wondered what animal or insect genus has the biggest difference between the smallest and biggest. What do you think?

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Some Ingenuity Can Go a Long Way

10,000 Birds

Among birds the Egyptian Vulture uses rocks to crack Ostrich eggs, the New Caledonian Crow and Woodpecker Finch (one of several Darwin Finches of the Galapagos Islands), uses sticks to extract grubs from inside a branch. Perhaps even more interesting is how Green Herons and its relatives have learned to use bait to attract and capture fish.

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Birdwatching the Okavango Delta

10,000 Birds

Hornbills, Paradise Flycatchers , day roosting Giant Eagle Owls or if we’re really lucky Pel’s Fishing Owl , the holy grail! We will explore the dry savannah for korhaans, bustards, lapwings, Ostrich and smaller birds like waxbills and firefinches and we’ll look for Dickinson’s Kestrel , Lanner and Red-necked Falcons.

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Birding the Kruger Park (2): Bateleur area

10,000 Birds

The German name of the Yellow-billed Stork is Nimmersatt, which translates as “Glutton” or “Never full” Wikipedia explains the name: “Parents feed their young by regurgitating fish onto the nest floor, whereupon it is picked up and consumed by the nestlings. Studies on improving ostrich egg hatchability.

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I Remember Elephants

10,000 Birds

Steven had no binoculars, but impressively sharp eyes and great knowledge of birds.

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Swimming with dolphins

10,000 Birds

Even people with no other interest in wildlife, who couldn’t tell a sparrow from an ostrich (or even a dolphin from a fish) love dolphins. People ascribe near mythic status to the members of the family Delphinidae (and other related families). Which has always mystified me slightly.

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Kaufman Field Guide to Nature of New England: A Field Guide Review by an Aspiring Naturalist

10,000 Birds

Well, I’m sure there are birders out there who can walk past Halloween Pennants or Ostrich Ferns without pausing, and who doesn’t care if the bird is in the White Spruce or Eastern White Pine, but I’ve never met one. “None of the above,” he proudly proclaimed, “I am a naturalist!” A naturalist, he told me, looks at everything.