Wildlife: Invertebrates, Reptiles, Amphibians

To some, species such as nudibranchs, sweat bees, tarantulas, and red-legged frogs are lumped into the great wide world of creepy-crawlies. But these underfoot and underwater animals can be surprisingly interesting, albeit sometimes obscure. The sense of wonder and curiosity that these species spark is a reminder of wildlife’s inherent value, no matter the size or number of legs.

Ask the Naturalist: Is That Butterfly Supposed To Be Here Now?

November 12, 2015 by Liam O'Brien

A San Francisco reader wonders about the bright orange-red butterfly he recently spotted in his backyard.


Ask the Naturalist: Where Has “Charlotte” Gone?

October 29, 2015 by Bay Nature Staff

A concerned spider fan asks what to do about a missing arachnid and the egg sacs she left behind.

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2016 Bay Nature Hero Award Winner

October 20, 2015 by Bay Nature Staff

Publishing icon and Bay Nature co-founder Malcolm Margolin will receive a special award for his invaluable contributions to Bay Nature and the cultural life of the Bay Area.

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Evolution’s Tangled Web

October 01, 2015 by Alisa Opar

Why do so many of our local spiders have traits from the earliest stages of spider development?

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What Moths Live in the East Bay Hills? On ‘Moth Night,’ A Chance to Find Out

August 06, 2015 by Brett Simpson

“Moths are definitely under-appreciated,” says the moth expert leading a nighttime moth expedition in El Cerrito. “People are scared of them. You don’t really get to see them, except when they’re knocking on your window or crowding your porch lights.”

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Edges of Extinction

August 04, 2015 by Nicholas Weiler

UC Santa Cruz ecologist Barry Sinervo studies dying species like a detective at a murder scene, hoping to identify animals near the brink of extinction.

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Ask the Naturalist: Why Are Sea Hares Multiplying In Lake Merritt?

May 26, 2015 by Bay Nature Staff

Nearly 100 giant sea slugs have been spotted in Oakland's Lake Merritt -- and they're breeding! But why? We asked Cal Academy's Terry Gosliner about this sudden influx.


Driving Home the Butterfly

May 18, 2015 by Eric Simons

The endangered Mission blue butterfly flies again on Twin Peaks, thanks to a dedicated six-year transplant effort that might be in its last year.


A Pretty Pink Nudibranch Moves North, and It’s a ‘Canary in the Tidepool’ for Climate Change

May 10, 2015 by Kaitlyn Kraybill-Voth

At low tide on the North Coast right now, the tidepools teem with Hopkins' rose nudibranchs. “This is not normal business as usual," says scientist Terry Gosliner.


San Francisco’s Native Bees Do the Job Just Fine

March 17, 2015 by Michelaina Johnson

San Francisco gardeners should take heart. There's enough native bees around to do your pollinating.