the explosion of tortoise shell butterflies in the sierra. officials say it's all because of mating season. next month the butterflies will make their way to the foothills where they'll hibernate. >>> it is 6:19. the catholic church and the boy scouts of america are among the many organizations. the new law making it possible. >> and before we go to break, you're taking a live look at the eastern span of the bay bridge. the sun is up. it is 6:19. alright, so this is how it's gonna go down. you are going to say... you'll get the best deal of the year on xfinity tv and internet. and you even get this. mike, you're on balloons. sarah, you're gonna high five everybody. ben, you're gonna be wowing them with your dance moves. don't miss the xfinity best deal of the year. now that's simple, easy, awesome. get amazing tv and internet during our best deal of the year. with huge savings of $600 over 2 years. plus a speed upgrade to 400 megs, free for 2 years. and ask about even more savings with xfinity mobile. click, call or visit a store today. >>> g

. ♪ ♪ ♪ ♪ ♪ ♪ ♪ ♪ >>> in the sierra foothills today a big rig fire shut down a portion of interstate 80 in both directions and cause traffic delays. they share this video and firefighters working to control the fire and it was just west of colfax. the chp said the driver was able to get out of the burning truck and was not hurt. the fire was first reported at 10:00 this morning and all lanes were shut down for several hours. the chp just reopen the final lane about two hours ago. >>> people driving through oakland on 80 faced gridlock during the morning commute after an rv overturned in the eastbound lanes. it happened about 5:10 this morning on seminary avenue in the chp said someone stole the rv and was towing it but it detached while the driver was being chased by the owner of the rv. the suspect got away, but debris was spread across all lanes causing one driver to swerve and end up in a ditch. the chp close three lanes as crews worked to clean up the mess and the lanes were all reopened about 10:00 this morning. >>> parents and a west oakland neighborhood are complaining it is n

biologists are finding the frog eggs, a sign they're breeding in the foothills of the sierra once again. this experiment a unique partnership between the park, the zoo and the yosemite conservancy. biologists hope it's a model for other threatened species. >> you want to have kids interacting with nature and to me, frogs, turtles, fish are the best way to do that. >> reporter: a missing piece to the ecology puzzle threatening species around the world. steve patterson, nbc news, san francisco. >> what a beautiful place to be relocated to. >>> still ahead on "today in the bay" we'll have an update on the fire in clayton that we first brought you as breaking news yesterday morning. >>> also his son remains locked up in an italian jail accused of killing a police officer. a bay area father returns home to tell his side of the story. can my side be firm? and my side super soft? with the sleep number 360 smart bed you can both... adjust your comfort with your sleep number setting. so, can it help us fall asleep faster? yes, by gently warming your feet. but can it help keep me asleep? absolute

showers over the sierra foothills. we are looking over the pacific ocean. numerous thunderstorms on the southern periphery of that low- pressure area we've been watching. some showers and thunderstorms might impact you. mendocino county certainly humbled county. maybe even north sonoma county. he will watch that throughout the evening. a number of thunderstorms over the warmer waters of the eastern pacific that are well offshore. giants and phillies tonight. 7:15 pm. 65 degrees. the niners play tomorrow night right here. 6 pm. clear skies and 78. taking on the cowboys in beautiful santa clara. low-pressure area passing over southern oregon. a widespread thunderstorm outbreak. it increase the fire danger in far northern california and southern oregon as the low traverses over the northwest saturday. best chance of a shower for us would be north of santa rosa overnight tonight. pretty cloudy night. pretty cloudy morning tomorrow. plan on sunshine in the afternoon with morning clouds afternoon sunshine coming up sunday. that cloudy night tonight with a couple

it's a t rex race that took place at the nevada county fair in the sierra foothills yesterday and that is the best video grass valley fire fighters and police officers stepped in to the inflatable dinosaur costumes to battle it out. >>on the racetrack the grass valley, fire fighters came out on top with a narrow win. your children may not like it, but it's time to go back to welcoming students with a room full of it. >>inspiration and sportswriters antonio brown will be without his favorite helmets, if he wants to play this season. mark as a bee's reaction to it all coming up. >>there is studdnts heading back to school this week and kron four's helping you get ready for the new school year yeah girl force re-assess it was a perilous elementary school in pleasanton as teachers welcome the students back to class today. >>i'm here in pleasanton and i have the lucky assignment of on being asked and lunde elementary school for the first day back to school and right now we're in 5th grade back in 5th grade. goodness gracious and this is teacher kelly like so what we have in store for this th

in the sierra nevada foothills. handing out, panning out millions and millions of dollars of gold from the california minds. sutter at the colony, he found this to be a huge problem. the indians were soaking to get into the minds that he recalled in his book in english, the indians could not be kept longer at work. they were impatient run the minds. so, i had to leave more than two thirds of my harvest in the field. so, his beads were not going to do it anymore. this is not just cash for us, it is cash for everybody and we are going to go get it. they basically learned the value of gold. just as they learned the value of anything else that was a commodity being exchanged in california. live stock, firs, whatever it was that settlers wanted. indians were very quick to ascertain the economic opportunity in that commodity. they just as quickly positioned themselves to take advantage by fleeing places like the colony and leaving their customary jobs for the mines. add to this, a lesser-known story of the california gold